public AssociateVehicleFleetRequest withFleetId(String fleetId) {
        setFleetId(fleetId);
        return this;
    }
<p>
The ID of a fleet.
</p>

@param fleetId
       The ID of a fleet.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotfleetwise/src/main/java/com/amazonaws/services/iotfleetwise/model/AssociateVehicleFleetRequest.java