code: def show(self, id):
          
          return self._get(
              url='{root}key_transactions/{id}.json'.format(
                  root=self.URL,
                  id=id
              ),
              headers=self.headers,
          )
docs: This API endpoint returns a single Key transaction, identified its ID.
  
          :type id: int
          :param id: Key transaction ID
  
          :rtype: dict
          :return: The JSON response of the API
  
          ::
  
              {
                  "key_transaction": {
                      "id": "integer",
                      "name": "string",
                      "transaction_name": "string",
                      "application_summary": {
                          "response_time": "float",
                          "throughput": "float",
                          "error_rate": "float",
                          "apdex_target": "float",
                          "apdex_score": "float"
                      },
                      "end_user_summary": {
                          "response_time": "float",
                          "throughput": "float",
                          "apdex_target": "float",
                          "apdex_score": "float"
                      },
                      "links": {
                          "application": "integer"
                      }
                  }
              }