public virtual AcceptDirectConnectGatewayAssociationProposalResponse AcceptDirectConnectGatewayAssociationProposal(AcceptDirectConnectGatewayAssociationProposalRequest request){var options = new InvokeOptions();options.RequestMarshaller = AcceptDirectConnectGatewayAssociationProposalRequestMarshaller.Instance;options.ResponseUnmarshaller = AcceptDirectConnectGatewayAssociationProposalResponseUnmarshaller.Instance;return Invoke<AcceptDirectConnectGatewayAssociationProposalResponse>(request, options);}