export function addHelpers()

in src/requests/response-helpers.ts [31:114]
81 lines of code
16 McCabe index (conditional complexity)

export function addHelpers(
  response: GenerateContentResponse,
): EnhancedGenerateContentResponse {
  (response as EnhancedGenerateContentResponse).text = () => {
    if (response.candidates && response.candidates.length > 0) {
      if (response.candidates.length > 1) {
        console.warn(
          `This response had ${response.candidates.length} ` +
            `candidates. Returning text from the first candidate only. ` +
            `Access response.candidates directly to use the other candidates.`,
        );
      }
      if (hadBadFinishReason(response.candidates[0])) {
        throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
          `${formatBlockErrorMessage(response)}`,
          response,
        );
      }
      return getText(response);
    } else if (response.promptFeedback) {
      throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
        `Text not available. ${formatBlockErrorMessage(response)}`,
        response,
      );
    }
    return "";
  };
  /**
   * TODO: remove at next major version
   */
  (response as EnhancedGenerateContentResponse).functionCall = () => {
    if (response.candidates && response.candidates.length > 0) {
      if (response.candidates.length > 1) {
        console.warn(
          `This response had ${response.candidates.length} ` +
            `candidates. Returning function calls from the first candidate only. ` +
            `Access response.candidates directly to use the other candidates.`,
        );
      }
      if (hadBadFinishReason(response.candidates[0])) {
        throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
          `${formatBlockErrorMessage(response)}`,
          response,
        );
      }
      console.warn(
        `response.functionCall() is deprecated. ` +
          `Use response.functionCalls() instead.`,
      );
      return getFunctionCalls(response)[0];
    } else if (response.promptFeedback) {
      throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
        `Function call not available. ${formatBlockErrorMessage(response)}`,
        response,
      );
    }
    return undefined;
  };
  (response as EnhancedGenerateContentResponse).functionCalls = () => {
    if (response.candidates && response.candidates.length > 0) {
      if (response.candidates.length > 1) {
        console.warn(
          `This response had ${response.candidates.length} ` +
            `candidates. Returning function calls from the first candidate only. ` +
            `Access response.candidates directly to use the other candidates.`,
        );
      }
      if (hadBadFinishReason(response.candidates[0])) {
        throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
          `${formatBlockErrorMessage(response)}`,
          response,
        );
      }
      return getFunctionCalls(response);
    } else if (response.promptFeedback) {
      throw new GoogleGenerativeAIResponseError<GenerateContentResponse>(
        `Function call not available. ${formatBlockErrorMessage(response)}`,
        response,
      );
    }
    return undefined;
  };
  return response as EnhancedGenerateContentResponse;
}