public EC2AssociateRouteTableAction withGatewayId(ActionTarget gatewayId) {
        setGatewayId(gatewayId);
        return this;
    }
<p>
The ID of the gateway to be used with the EC2 route table that is associated with the remediation action.
</p>

@param gatewayId
       The ID of the gateway to be used with the EC2 route table that is associated with the remediation action.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-fms/src/main/java/com/amazonaws/services/fms/model/EC2AssociateRouteTableAction.java