class PrettyPrint
  def text: (String) -> void

  def group: (?Integer, ?String, ?String) { () -> void } -> void

  def nest: (Integer) { () -> void } -> void

  def breakable: (String) -> void

  def self.format: { (instance) -> void } -> String

  def self.singleline_format: { (instance) -> void } -> String
end