public Builder setMachineSpec(com.google.cloud.visionai.v1.MachineSpec value) {
      if (machineSpecBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        machineSpec_ = value;
      } else {
        machineSpecBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Required. Immutable. The specification of a single machine used by the
prediction.
</pre>

<code>
.google.cloud.visionai.v1.MachineSpec machine_spec = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IMMUTABLE];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/DedicatedResources.java