@type t() :: %OpenCode.Generated.TextPart{
  id: String.t(),
  ignored: boolean() | nil,
  message_id: String.t(),
  metadata: map() | nil,
  session_id: String.t(),
  synthetic: boolean() | nil,
  text: String.t(),
  time: OpenCode.Generated.TextPartTime.t() | nil,
  type: String.t()
}