code: public void setDeviceCapabilitySegment(com.google.api.ads.admanager.axis.v201902.DeviceCapabilityTargeting deviceCapabilitySegment) {
          this.deviceCapabilitySegment = deviceCapabilitySegment;
      }
docs: Sets the deviceCapabilitySegment value for this ProductSegmentation.
  
  @param deviceCapabilitySegment   * The device capability segmentation. {@link
  DeviceCapabilityTargeting#excludedDeviceCapabilities}
  must be empty or null.
  
  <p>This attribute is optional.