@type t() :: %Ash.Resource.Actions.Emit{
  __spark_metadata__: Spark.Dsl.Entity.spark_meta(),
  description: String.t() | nil,
  dynamic?: boolean(),
  fields: [{atom(), atom()}],
  phase: Ash.Signals.Signal.phase(),
  signal: atom(),
  signal_module: Ash.Signals.t(),
  values: Keyword.t(),
  where: [Ash.Resource.Validation.ref()]
}