serializeToolsForSdk static method

String serializeToolsForSdk(List<Tool> tools)

Serialize tools into the OpenAI Chat Completions JSON format that LiteRT-LM SDK expects in litert_lm_conversation_config_set_tools. SDK then applies chat_template.jinja (via minja) to render native Gemma 4 <|tool>declaration:...<tool|> tokens.

Reference: upstream c/engine_test.cc::CreateConversationConfigWithTools.

Implementation

static String serializeToolsForSdk(List<Tool> tools) => jsonEncode([
  for (final tool in tools)
    {
      'type': 'function',
      'function': {
        'name': tool.name,
        'description': tool.description,
        'parameters': tool.parameters,
      },
    },
]);