code: @Override
      public DeleteDirectConnectGatewayAssociationProposalResult deleteDirectConnectGatewayAssociationProposal(
              DeleteDirectConnectGatewayAssociationProposalRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteDirectConnectGatewayAssociationProposal(request);
      }
docs: <p>
  Deletes the association proposal request between the specified Direct Connect gateway and virtual private
  gateway.
  </p>
  
  @param deleteDirectConnectGatewayAssociationProposalRequest
  @return Result of the DeleteDirectConnectGatewayAssociationProposal operation returned by the service.
  @throws DirectConnectServerException
  A server-side error occurred.
  @throws DirectConnectClientException
  One or more parameters are not valid.
  @sample AmazonDirectConnect.DeleteDirectConnectGatewayAssociationProposal
  @see <a
  href="http://docs.aws.amazon.com/goto/WebAPI/directconnect-2012-10-25/DeleteDirectConnectGatewayAssociationProposal"
  target="_top">AWS API Documentation</a>