messageFromJson function

Message messageFromJson(
  1. Map<String, dynamic> json
)

Deserializes a Message from its JSON map, dispatching on role.

Implementation

Message messageFromJson(Map<String, dynamic> json) {
  return switch (json['role']) {
    'user' => UserMessage.fromJson(json),
    'assistant' => AssistantMessage.fromJson(json),
    'toolResult' => ToolResultMessage.fromJson(json),
    _ => throw FormatException('Unknown message role: ${json['role']}'),
  };
}