# frozen_string_literal: true

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Auto-generated by gapic-generator-ruby. DO NOT EDIT!


module Google
  module Cloud
    module Dialogflow
      module V2
        # The request to detect user's intent.
        # @!attribute [rw] session
        #   @return [::String]
        #     Required. The name of the session this query is sent to. Format:
        #     `projects/<Project ID>/agent/sessions/<Session ID>`, or
        #     `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
        #     ID>/sessions/<Session ID>`. If `Environment ID` is not specified, we assume
        #     default 'draft' environment (`Environment ID` might be referred to as
        #     environment name at some places). If `User ID` is not specified, we are
        #     using "-". It's up to the API caller to choose an appropriate `Session ID`
        #     and `User Id`. They can be a random number or some type of user and session
        #     identifiers (preferably hashed). The length of the `Session ID` and
        #     `User ID` must not exceed 36 characters.
        #
        #     For more information, see the [API interactions
        #     guide](https://cloud.google.com/dialogflow/docs/api-overview).
        #
        #     Note: Always use agent versions for production traffic.
        #     See [Versions and
        #     environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
        # @!attribute [rw] query_params
        #   @return [::Google::Cloud::Dialogflow::V2::QueryParameters]
        #     The parameters of this query.
        # @!attribute [rw] query_input
        #   @return [::Google::Cloud::Dialogflow::V2::QueryInput]
        #     Required. The input specification. It can be set to:
        #
        #     1.  an audio config
        #         which instructs the speech recognizer how to process the speech audio,
        #
        #     2.  a conversational query in the form of text, or
        #
        #     3.  an event that specifies which intent to trigger.
        # @!attribute [rw] output_audio_config
        #   @return [::Google::Cloud::Dialogflow::V2::OutputAudioConfig]
        #     Instructs the speech synthesizer how to generate the output
        #     audio. If this field is not set and agent-level speech synthesizer is not
        #     configured, no output audio is generated.
        # @!attribute [rw] output_audio_config_mask
        #   @return [::Google::Protobuf::FieldMask]
        #     Mask for
        #     {::Google::Cloud::Dialogflow::V2::DetectIntentRequest#output_audio_config output_audio_config}
        #     indicating which settings in this request-level config should override
        #     speech synthesizer settings defined at agent-level.
        #
        #     If unspecified or empty,
        #     {::Google::Cloud::Dialogflow::V2::DetectIntentRequest#output_audio_config output_audio_config}
        #     replaces the agent-level config in its entirety.
        # @!attribute [rw] input_audio
        #   @return [::String]
        #     The natural language speech audio to be processed. This field
        #     should be populated iff `query_input` is set to an input audio config.
        #     A single request can contain up to 1 minute of speech audio data.
        class DetectIntentRequest
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # The message returned from the DetectIntent method.
        # @!attribute [rw] response_id
        #   @return [::String]
        #     The unique identifier of the response. It can be used to
        #     locate a response in the training example set or for reporting issues.
        # @!attribute [rw] query_result
        #   @return [::Google::Cloud::Dialogflow::V2::QueryResult]
        #     The selected results of the conversational query or event processing.
        #     See `alternative_query_results` for additional potential results.
        # @!attribute [rw] webhook_status
        #   @return [::Google::Rpc::Status]
        #     Specifies the status of the webhook request.
        # @!attribute [rw] output_audio
        #   @return [::String]
        #     The audio data bytes encoded as specified in the request.
        #     Note: The output audio is generated based on the values of default platform
        #     text responses found in the `query_result.fulfillment_messages` field. If
        #     multiple default text responses exist, they will be concatenated when
        #     generating audio. If no default platform text responses exist, the
        #     generated audio content will be empty.
        #
        #     In some scenarios, multiple output audio fields may be present in the
        #     response structure. In these cases, only the top-most-level audio output
        #     has content.
        # @!attribute [rw] output_audio_config
        #   @return [::Google::Cloud::Dialogflow::V2::OutputAudioConfig]
        #     The config used by the speech synthesizer to generate the output audio.
        class DetectIntentResponse
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # Represents the parameters of the conversational query.
        # @!attribute [rw] time_zone
        #   @return [::String]
        #     The time zone of this conversational query from the
        #     [time zone database](https://www.iana.org/time-zones), e.g.,
        #     America/New_York, Europe/Paris. If not provided, the time zone specified in
        #     agent settings is used.
        # @!attribute [rw] geo_location
        #   @return [::Google::Type::LatLng]
        #     The geo location of this conversational query.
        # @!attribute [rw] contexts
        #   @return [::Array<::Google::Cloud::Dialogflow::V2::Context>]
        #     The collection of contexts to be activated before this query is
        #     executed.
        # @!attribute [rw] reset_contexts
        #   @return [::Boolean]
        #     Specifies whether to delete all contexts in the current session
        #     before the new ones are activated.
        # @!attribute [rw] session_entity_types
        #   @return [::Array<::Google::Cloud::Dialogflow::V2::SessionEntityType>]
        #     Additional session entity types to replace or extend developer
        #     entity types with. The entity synonyms apply to all languages and persist
        #     for the session of this query.
        # @!attribute [rw] payload
        #   @return [::Google::Protobuf::Struct]
        #     This field can be used to pass custom data to your webhook.
        #     Arbitrary JSON objects are supported.
        #     If supplied, the value is used to populate the
        #     `WebhookRequest.original_detect_intent_request.payload`
        #     field sent to your webhook.
        # @!attribute [rw] sentiment_analysis_request_config
        #   @return [::Google::Cloud::Dialogflow::V2::SentimentAnalysisRequestConfig]
        #     Configures the type of sentiment analysis to perform. If not
        #     provided, sentiment analysis is not performed.
        # @!attribute [rw] webhook_headers
        #   @return [::Google::Protobuf::Map{::String => ::String}]
        #     This field can be used to pass HTTP headers for a webhook
        #     call. These headers will be sent to webhook along with the headers that
        #     have been configured through the Dialogflow web console. The headers
        #     defined within this field will overwrite the headers configured through the
        #     Dialogflow console if there is a conflict. Header names are
        #     case-insensitive. Google's specified headers are not allowed. Including:
        #     "Host", "Content-Length", "Connection", "From", "User-Agent",
        #     "Accept-Encoding", "If-Modified-Since", "If-None-Match", "X-Forwarded-For",
        #     etc.
        class QueryParameters
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods

          # @!attribute [rw] key
          #   @return [::String]
          # @!attribute [rw] value
          #   @return [::String]
          class WebhookHeadersEntry
            include ::Google::Protobuf::MessageExts
            extend ::Google::Protobuf::MessageExts::ClassMethods
          end
        end

        # Represents the query input. It can contain either:
        #
        # 1.  An audio config which
        #     instructs the speech recognizer how to process the speech audio.
        #
        # 2.  A conversational query in the form of text,.
        #
        # 3.  An event that specifies which intent to trigger.
        # @!attribute [rw] audio_config
        #   @return [::Google::Cloud::Dialogflow::V2::InputAudioConfig]
        #     Instructs the speech recognizer how to process the speech audio.
        # @!attribute [rw] text
        #   @return [::Google::Cloud::Dialogflow::V2::TextInput]
        #     The natural language text to be processed. Text length must not exceed
        #     256 character for virtual agent interactions.
        # @!attribute [rw] event
        #   @return [::Google::Cloud::Dialogflow::V2::EventInput]
        #     The event to be processed.
        class QueryInput
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # Represents the result of conversational query or event processing.
        # @!attribute [rw] query_text
        #   @return [::String]
        #     The original conversational query text:
        #
        #     - If natural language text was provided as input, `query_text` contains
        #       a copy of the input.
        #     - If natural language speech audio was provided as input, `query_text`
        #       contains the speech recognition result. If speech recognizer produced
        #       multiple alternatives, a particular one is picked.
        #     - If automatic spell correction is enabled, `query_text` will contain the
        #       corrected user input.
        # @!attribute [rw] language_code
        #   @return [::String]
        #     The language that was triggered during intent detection.
        #     See [Language
        #     Support](https://cloud.google.com/dialogflow/docs/reference/language)
        #     for a list of the currently supported language codes.
        # @!attribute [rw] speech_recognition_confidence
        #   @return [::Float]
        #     The Speech recognition confidence between 0.0 and 1.0. A higher number
        #     indicates an estimated greater likelihood that the recognized words are
        #     correct. The default of 0.0 is a sentinel value indicating that confidence
        #     was not set.
        #
        #     This field is not guaranteed to be accurate or set. In particular this
        #     field isn't set for StreamingDetectIntent since the streaming endpoint has
        #     separate confidence estimates per portion of the audio in
        #     StreamingRecognitionResult.
        # @!attribute [rw] action
        #   @return [::String]
        #     The action name from the matched intent.
        # @!attribute [rw] parameters
        #   @return [::Google::Protobuf::Struct]
        #     The collection of extracted parameters.
        #
        #     Depending on your protocol or client library language, this is a
        #     map, associative array, symbol table, dictionary, or JSON object
        #     composed of a collection of (MapKey, MapValue) pairs:
        #
        #     -   MapKey type: string
        #     -   MapKey value: parameter name
        #     -   MapValue type:
        #         -   If parameter's entity type is a composite entity: map
        #         -   Else: depending on parameter value type, could be one of string,
        #             number, boolean, null, list or map
        #     -   MapValue value:
        #         -   If parameter's entity type is a composite entity:
        #             map from composite entity property names to property values
        #         -   Else: parameter value
        # @!attribute [rw] all_required_params_present
        #   @return [::Boolean]
        #     This field is set to:
        #
        #     - `false` if the matched intent has required parameters and not all of
        #        the required parameter values have been collected.
        #     - `true` if all required parameter values have been collected, or if the
        #        matched intent doesn't contain any required parameters.
        # @!attribute [rw] cancels_slot_filling
        #   @return [::Boolean]
        #     Indicates whether the conversational query triggers a cancellation for slot
        #     filling. For more information, see the [cancel slot filling
        #     documentation](https://cloud.google.com/dialogflow/es/docs/intents-actions-parameters#cancel).
        # @!attribute [rw] fulfillment_text
        #   @return [::String]
        #     The text to be pronounced to the user or shown on the screen.
        #     Note: This is a legacy field, `fulfillment_messages` should be preferred.
        # @!attribute [rw] fulfillment_messages
        #   @return [::Array<::Google::Cloud::Dialogflow::V2::Intent::Message>]
        #     The collection of rich messages to present to the user.
        # @!attribute [rw] webhook_source
        #   @return [::String]
        #     If the query was fulfilled by a webhook call, this field is set to the
        #     value of the `source` field returned in the webhook response.
        # @!attribute [rw] webhook_payload
        #   @return [::Google::Protobuf::Struct]
        #     If the query was fulfilled by a webhook call, this field is set to the
        #     value of the `payload` field returned in the webhook response.
        # @!attribute [rw] output_contexts
        #   @return [::Array<::Google::Cloud::Dialogflow::V2::Context>]
        #     The collection of output contexts. If applicable,
        #     `output_contexts.parameters` contains entries with name
        #     `<parameter name>.original` containing the original parameter values
        #     before the query.
        # @!attribute [rw] intent
        #   @return [::Google::Cloud::Dialogflow::V2::Intent]
        #     The intent that matched the conversational query. Some, not
        #     all fields are filled in this message, including but not limited to:
        #     `name`, `display_name`, `end_interaction` and `is_fallback`.
        # @!attribute [rw] intent_detection_confidence
        #   @return [::Float]
        #     The intent detection confidence. Values range from 0.0
        #     (completely uncertain) to 1.0 (completely certain).
        #     This value is for informational purpose only and is only used to
        #     help match the best intent within the classification threshold.
        #     This value may change for the same end-user expression at any time due to a
        #     model retraining or change in implementation.
        #     If there are `multiple knowledge_answers` messages, this value is set to
        #     the greatest `knowledgeAnswers.match_confidence` value in the list.
        # @!attribute [rw] diagnostic_info
        #   @return [::Google::Protobuf::Struct]
        #     Free-form diagnostic information for the associated detect intent request.
        #     The fields of this data can change without notice, so you should not write
        #     code that depends on its structure.
        #     The data may contain:
        #
        #     - webhook call latency
        #     - webhook errors
        # @!attribute [rw] sentiment_analysis_result
        #   @return [::Google::Cloud::Dialogflow::V2::SentimentAnalysisResult]
        #     The sentiment analysis result, which depends on the
        #     `sentiment_analysis_request_config` specified in the request.
        class QueryResult
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # The top-level message sent by the client to the
        # {::Google::Cloud::Dialogflow::V2::Sessions::Client#streaming_detect_intent Sessions.StreamingDetectIntent}
        # method.
        #
        # Multiple request messages should be sent in order:
        #
        # 1.  The first message must contain
        # {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#session session},
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#query_input query_input}
        #     plus optionally
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#query_params query_params}.
        #     If the client wants to receive an audio response, it should also contain
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#output_audio_config output_audio_config}.
        #     The message must not contain
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#input_audio input_audio}.
        # 2.  If
        # {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#query_input query_input}
        # was set to
        #     {::Google::Cloud::Dialogflow::V2::InputAudioConfig query_input.audio_config},
        #     all subsequent messages must contain
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#input_audio input_audio}
        #     to continue with Speech recognition. If you decide to rather detect an
        #     intent from text input after you already started Speech recognition,
        #     please send a message with
        #     {::Google::Cloud::Dialogflow::V2::QueryInput#text query_input.text}.
        #
        #     However, note that:
        #
        #     * Dialogflow will bill you for the audio duration so far.
        #     * Dialogflow discards all Speech recognition results in favor of the
        #       input text.
        #     * Dialogflow will use the language code from the first message.
        #
        # After you sent all input, you must half-close or abort the request stream.
        # @!attribute [rw] session
        #   @return [::String]
        #     Required. The name of the session the query is sent to.
        #     Format of the session name:
        #     `projects/<Project ID>/agent/sessions/<Session ID>`, or
        #     `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
        #     ID>/sessions/<Session ID>`. If `Environment ID` is not specified, we assume
        #     default 'draft' environment. If `User ID` is not specified, we are using
        #     "-". It's up to the API caller to choose an appropriate `Session ID` and
        #     `User Id`. They can be a random number or some type of user and session
        #     identifiers (preferably hashed). The length of the `Session ID` and
        #     `User ID` must not exceed 36 characters.
        #
        #     For more information, see the [API interactions
        #     guide](https://cloud.google.com/dialogflow/docs/api-overview).
        #
        #     Note: Always use agent versions for production traffic.
        #     See [Versions and
        #     environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
        # @!attribute [rw] query_params
        #   @return [::Google::Cloud::Dialogflow::V2::QueryParameters]
        #     The parameters of this query.
        # @!attribute [rw] query_input
        #   @return [::Google::Cloud::Dialogflow::V2::QueryInput]
        #     Required. The input specification. It can be set to:
        #
        #     1.  an audio config which instructs the speech recognizer how to process
        #         the speech audio,
        #
        #     2.  a conversational query in the form of text, or
        #
        #     3.  an event that specifies which intent to trigger.
        # @!attribute [rw] single_utterance
        #   @return [::Boolean]
        #     Please use
        #     {::Google::Cloud::Dialogflow::V2::InputAudioConfig#single_utterance InputAudioConfig.single_utterance}
        #     instead. If `false` (default), recognition does not cease until the client
        #     closes the stream. If `true`, the recognizer will detect a single spoken
        #     utterance in input audio. Recognition ceases when it detects the audio's
        #     voice has stopped or paused. In this case, once a detected intent is
        #     received, the client should close the stream and start a new request with a
        #     new stream as needed. This setting is ignored when `query_input` is a piece
        #     of text or an event.
        # @!attribute [rw] output_audio_config
        #   @return [::Google::Cloud::Dialogflow::V2::OutputAudioConfig]
        #     Instructs the speech synthesizer how to generate the output
        #     audio. If this field is not set and agent-level speech synthesizer is not
        #     configured, no output audio is generated.
        # @!attribute [rw] output_audio_config_mask
        #   @return [::Google::Protobuf::FieldMask]
        #     Mask for
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#output_audio_config output_audio_config}
        #     indicating which settings in this request-level config should override
        #     speech synthesizer settings defined at agent-level.
        #
        #     If unspecified or empty,
        #     {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#output_audio_config output_audio_config}
        #     replaces the agent-level config in its entirety.
        # @!attribute [rw] input_audio
        #   @return [::String]
        #     The input audio content to be recognized. Must be sent if
        #     `query_input` was set to a streaming input audio config. The complete audio
        #     over all streaming messages must not exceed 1 minute.
        class StreamingDetectIntentRequest
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # The top-level message returned from the
        # `StreamingDetectIntent` method.
        #
        # Multiple response messages can be returned in order:
        #
        # 1.  If the `StreamingDetectIntentRequest.input_audio` field was
        #     set, the `recognition_result` field is populated for one
        #     or more messages.
        #     See the
        #     {::Google::Cloud::Dialogflow::V2::StreamingRecognitionResult StreamingRecognitionResult}
        #     message for details about the result message sequence.
        #
        # 2.  The next message contains `response_id`, `query_result`
        #     and optionally `webhook_status` if a WebHook was called.
        # @!attribute [rw] response_id
        #   @return [::String]
        #     The unique identifier of the response. It can be used to
        #     locate a response in the training example set or for reporting issues.
        # @!attribute [rw] recognition_result
        #   @return [::Google::Cloud::Dialogflow::V2::StreamingRecognitionResult]
        #     The result of speech recognition.
        # @!attribute [rw] query_result
        #   @return [::Google::Cloud::Dialogflow::V2::QueryResult]
        #     The result of the conversational query or event processing.
        # @!attribute [rw] webhook_status
        #   @return [::Google::Rpc::Status]
        #     Specifies the status of the webhook request.
        # @!attribute [rw] output_audio
        #   @return [::String]
        #     The audio data bytes encoded as specified in the request.
        #     Note: The output audio is generated based on the values of default platform
        #     text responses found in the `query_result.fulfillment_messages` field. If
        #     multiple default text responses exist, they will be concatenated when
        #     generating audio. If no default platform text responses exist, the
        #     generated audio content will be empty.
        #
        #     In some scenarios, multiple output audio fields may be present in the
        #     response structure. In these cases, only the top-most-level audio output
        #     has content.
        # @!attribute [rw] output_audio_config
        #   @return [::Google::Cloud::Dialogflow::V2::OutputAudioConfig]
        #     The config used by the speech synthesizer to generate the output audio.
        class StreamingDetectIntentResponse
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # Contains a speech recognition result corresponding to a portion of the audio
        # that is currently being processed or an indication that this is the end
        # of the single requested utterance.
        #
        # While end-user audio is being processed, Dialogflow sends a series of
        # results. Each result may contain a `transcript` value. A transcript
        # represents a portion of the utterance. While the recognizer is processing
        # audio, transcript values may be interim values or finalized values.
        # Once a transcript is finalized, the `is_final` value is set to true and
        # processing continues for the next transcript.
        #
        # If `StreamingDetectIntentRequest.query_input.audio_config.single_utterance`
        # was true, and the recognizer has completed processing audio,
        # the `message_type` value is set to `END_OF_SINGLE_UTTERANCE and the
        # following (last) result contains the last finalized transcript.
        #
        # The complete end-user utterance is determined by concatenating the
        # finalized transcript values received for the series of results.
        #
        # In the following example, single utterance is enabled. In the case where
        # single utterance is not enabled, result 7 would not occur.
        #
        # ```
        # Num | transcript              | message_type            | is_final
        # --- | ----------------------- | ----------------------- | --------
        # 1   | "tube"                  | TRANSCRIPT              | false
        # 2   | "to be a"               | TRANSCRIPT              | false
        # 3   | "to be"                 | TRANSCRIPT              | false
        # 4   | "to be or not to be"    | TRANSCRIPT              | true
        # 5   | "that's"                | TRANSCRIPT              | false
        # 6   | "that is                | TRANSCRIPT              | false
        # 7   | unset                   | END_OF_SINGLE_UTTERANCE | unset
        # 8   | " that is the question" | TRANSCRIPT              | true
        # ```
        #
        # Concatenating the finalized transcripts with `is_final` set to true,
        # the complete utterance becomes "to be or not to be that is the question".
        # @!attribute [rw] message_type
        #   @return [::Google::Cloud::Dialogflow::V2::StreamingRecognitionResult::MessageType]
        #     Type of the result message.
        # @!attribute [rw] transcript
        #   @return [::String]
        #     Transcript text representing the words that the user spoke.
        #     Populated if and only if `message_type` = `TRANSCRIPT`.
        # @!attribute [rw] is_final
        #   @return [::Boolean]
        #     If `false`, the `StreamingRecognitionResult` represents an
        #     interim result that may change. If `true`, the recognizer will not return
        #     any further hypotheses about this piece of the audio. May only be populated
        #     for `message_type` = `TRANSCRIPT`.
        # @!attribute [rw] confidence
        #   @return [::Float]
        #     The Speech confidence between 0.0 and 1.0 for the current portion of audio.
        #     A higher number indicates an estimated greater likelihood that the
        #     recognized words are correct. The default of 0.0 is a sentinel value
        #     indicating that confidence was not set.
        #
        #     This field is typically only provided if `is_final` is true and you should
        #     not rely on it being accurate or even set.
        # @!attribute [rw] speech_word_info
        #   @return [::Array<::Google::Cloud::Dialogflow::V2::SpeechWordInfo>]
        #     Word-specific information for the words recognized by Speech in
        #     {::Google::Cloud::Dialogflow::V2::StreamingRecognitionResult#transcript transcript}.
        #     Populated if and only if `message_type` = `TRANSCRIPT` and
        #     [InputAudioConfig.enable_word_info] is set.
        # @!attribute [rw] speech_end_offset
        #   @return [::Google::Protobuf::Duration]
        #     Time offset of the end of this Speech recognition result relative to the
        #     beginning of the audio. Only populated for `message_type` = `TRANSCRIPT`.
        # @!attribute [rw] language_code
        #   @return [::String]
        #     Detected language code for the transcript.
        class StreamingRecognitionResult
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods

          # Type of the response message.
          module MessageType
            # Not specified. Should never be used.
            MESSAGE_TYPE_UNSPECIFIED = 0

            # Message contains a (possibly partial) transcript.
            TRANSCRIPT = 1

            # Event indicates that the server has detected the end of the user's speech
            # utterance and expects no additional inputs.
            # Therefore, the server will not process additional audio (although it may
            # subsequently return additional results). The client should stop sending
            # additional audio data, half-close the gRPC connection, and wait for any
            # additional results until the server closes the gRPC connection. This
            # message is only sent if `single_utterance` was set to `true`, and is not
            # used otherwise.
            END_OF_SINGLE_UTTERANCE = 2
          end
        end

        # ============================================================================
        # Auxiliary proto messages.
        #
        # Represents the natural language text to be processed.
        # @!attribute [rw] text
        #   @return [::String]
        #     Required. The UTF-8 encoded natural language text to be processed.
        #     Text length must not exceed 256 characters for virtual agent interactions.
        # @!attribute [rw] language_code
        #   @return [::String]
        #     Required. The language of this conversational query. See [Language
        #     Support](https://cloud.google.com/dialogflow/docs/reference/language)
        #     for a list of the currently supported language codes. Note that queries in
        #     the same session do not necessarily need to specify the same language.
        class TextInput
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # Events allow for matching intents by event name instead of the natural
        # language input. For instance, input `<event: { name: "welcome_event",
        # parameters: { name: "Sam" } }>` can trigger a personalized welcome response.
        # The parameter `name` may be used by the agent in the response:
        # `"Hello #welcome_event.name! What can I do for you today?"`.
        # @!attribute [rw] name
        #   @return [::String]
        #     Required. The unique identifier of the event.
        # @!attribute [rw] parameters
        #   @return [::Google::Protobuf::Struct]
        #     The collection of parameters associated with the event.
        #
        #     Depending on your protocol or client library language, this is a
        #     map, associative array, symbol table, dictionary, or JSON object
        #     composed of a collection of (MapKey, MapValue) pairs:
        #
        #     -   MapKey type: string
        #     -   MapKey value: parameter name
        #     -   MapValue type:
        #         -   If parameter's entity type is a composite entity: map
        #         -   Else: depending on parameter value type, could be one of string,
        #             number, boolean, null, list or map
        #     -   MapValue value:
        #         -   If parameter's entity type is a composite entity:
        #             map from composite entity property names to property values
        #         -   Else: parameter value
        # @!attribute [rw] language_code
        #   @return [::String]
        #     Required. The language of this query. See [Language
        #     Support](https://cloud.google.com/dialogflow/docs/reference/language)
        #     for a list of the currently supported language codes. Note that queries in
        #     the same session do not necessarily need to specify the same language.
        #
        #     This field is ignored when used in the context of a
        #     {::Google::Cloud::Dialogflow::V2::WebhookResponse#followup_event_input WebhookResponse.followup_event_input}
        #     field, because the language was already defined in the originating detect
        #     intent request.
        class EventInput
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # Configures the types of sentiment analysis to perform.
        # @!attribute [rw] analyze_query_text_sentiment
        #   @return [::Boolean]
        #     Instructs the service to perform sentiment analysis on
        #     `query_text`. If not provided, sentiment analysis is not performed on
        #     `query_text`.
        class SentimentAnalysisRequestConfig
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # The result of sentiment analysis. Sentiment analysis inspects user input
        # and identifies the prevailing subjective opinion, especially to determine a
        # user's attitude as positive, negative, or neutral.
        # For [Participants.DetectIntent][], it needs to be configured in
        # {::Google::Cloud::Dialogflow::V2::DetectIntentRequest#query_params DetectIntentRequest.query_params}.
        # For [Participants.StreamingDetectIntent][], it needs to be configured in
        # {::Google::Cloud::Dialogflow::V2::StreamingDetectIntentRequest#query_params StreamingDetectIntentRequest.query_params}.
        # And for
        # {::Google::Cloud::Dialogflow::V2::Participants::Client#analyze_content Participants.AnalyzeContent}
        # and
        # {::Google::Cloud::Dialogflow::V2::Participants::Client#streaming_analyze_content Participants.StreamingAnalyzeContent},
        # it needs to be configured in
        # {::Google::Cloud::Dialogflow::V2::ConversationProfile#human_agent_assistant_config ConversationProfile.human_agent_assistant_config}
        # @!attribute [rw] query_text_sentiment
        #   @return [::Google::Cloud::Dialogflow::V2::Sentiment]
        #     The sentiment analysis result for `query_text`.
        class SentimentAnalysisResult
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end

        # The sentiment, such as positive/negative feeling or association, for a unit
        # of analysis, such as the query text. See:
        # https://cloud.google.com/natural-language/docs/basics#interpreting_sentiment_analysis_values
        # for how to interpret the result.
        # @!attribute [rw] score
        #   @return [::Float]
        #     Sentiment score between -1.0 (negative sentiment) and 1.0 (positive
        #     sentiment).
        # @!attribute [rw] magnitude
        #   @return [::Float]
        #     A non-negative number in the [0, +inf) range, which represents the absolute
        #     magnitude of sentiment, regardless of score (positive or negative).
        class Sentiment
          include ::Google::Protobuf::MessageExts
          extend ::Google::Protobuf::MessageExts::ClassMethods
        end
      end
    end
  end
end