docs: def _get_config(self, func_src):
          """
          Return the full terraform configuration as a JSON string
  
          :param func_src: lambda function source
          :type func_src: str
          :return: terraform configuration
          :rtype: str
          """
          self._set_account_info()
          self._generate_iam_role()
          self._generate_iam_role_policy()
          self._generate_iam_invoke_role()
          self._generate_iam_invoke_role_policy()
          self._generate_lambda()
          self._generate_response_models()
          self._generate_api_gateway()
          self._generate_api_gateway_deployment()
          self._generate_saved_config()
          return pretty_json(self.tf_conf)