code: function generateRequirementsFile(
    requirementsPath,
    targetFile,
    serverless,
    servicePath,
    options
  ) {
    if (
      options.usePoetry &&
      fse.existsSync(path.join(servicePath, 'pyproject.toml'))
    ) {
      filterRequirementsFile(
        path.join(servicePath, '.serverless/requirements.txt'),
        targetFile,
        options
      );
      serverless.cli.log(
        `Parsed requirements.txt from pyproject.toml in ${targetFile}...`
      );
    } else if (
      options.usePipenv &&
      fse.existsSync(path.join(servicePath, 'Pipfile'))
    ) {
      filterRequirementsFile(
        path.join(servicePath, '.serverless/requirements.txt'),
        targetFile,
        options
      );
      serverless.cli.log(
        `Parsed requirements.txt from Pipfile in ${targetFile}...`
      );
    } else {
      filterRequirementsFile(requirementsPath, targetFile, options);
      serverless.cli.log(
        `Generated requirements from ${requirementsPath} in ${targetFile}...`
      );
    }
  }
docs: Just generate the requirements file in the .serverless folder
  @param {string} requirementsPath
  @param {string} targetFile
  @param {Object} serverless
  @param {string} servicePath
  @param {Object} options
  @return {undefined}