code: def get_certificate_issuer_configs(self, **kwargs):  # noqa: E501
          
          kwargs['_return_http_data_only'] = True
          if kwargs.get('asynchronous'):
              return self.get_certificate_issuer_configs_with_http_info(**kwargs)  # noqa: E501
          else:
              (data) = self.get_certificate_issuer_configs_with_http_info(**kwargs)  # noqa: E501
              return data
docs: Get certificate issuer configurations.  # noqa: E501
  
          Get certificate issuer configurations, optionally filtered by reference. <br> **Example usage:**  ``` curl \\ -H 'authorization: <valid access token>' \\ -H 'content-type: application/json;charset=UTF-8' \\ https://api.us-east-1.mbedcloud.com/v3/certificate-issuer-configurations \\ ``` ``` curl \\ -H 'authorization: <valid access token>' \\ -H 'content-type: application/json;charset=UTF-8' \\ https://api.us-east-1.mbedcloud.com/v3/certificate-issuer-configurations?reference__eq=dlms \\ ```   # noqa: E501
          This method makes a synchronous HTTP request by default. To make an
          asynchronous HTTP request, please pass asynchronous=True
          >>> thread = api.get_certificate_issuer_configs(asynchronous=True)
          >>> result = thread.get()
  
          :param asynchronous bool
          :param str reference__eq: The certificate name to which the certificate issuer configuration applies.
          :return: CertificateIssuerConfigListResponse
                   If the method is called asynchronously,
                   returns the request thread.