code: def _get_source(self):
          
          logger.debug('Getting module source for webhook2lambda2sqs.lambda_func')
          orig = getsourcelines(lambda_func)
          src = ''
          in_docstr = False
          have_docstr = False
          for line in orig[0]:
              if line.strip() == '"""' and not in_docstr and not have_docstr:
                  in_docstr = True
                  continue
              if line.strip() == '"""' and in_docstr:
                  in_docstr = False
                  have_docstr = True
                  continue
              if not in_docstr:
                  src += line
          return src
docs: Get the lambda function source template. Strip the leading docstring.
          Note that it's a real module in this project so we can test it.
  
          :return: function source code, with leading docstring stripped.
          :rtype: str