module HTTPX::Transcoder
  type form_value = string

  type form_nested_value = form_value | _ToAry[form_value] | _ToHash[string, form_value]

  type urlencoded_input = Enumerable[[_ToS, form_nested_value | Multipart::multipart_nested_value]]

  module Form
    def self?.encode: (urlencoded_input form) -> (Encoder | Multipart::Encoder)
    def self?.decode: (HTTPX::Response response) -> _Decoder
    def self?.multipart?: (form_nested_value | Multipart::multipart_nested_value data) -> bool

    class Encoder
      extend Forwardable
      include _ToS

      def bytesize: () -> Integer

      def content_type: () -> String

      private

      def initialize: (urlencoded_input form) -> untyped
    end
  end
end