public Builder setAllowMissing(boolean value) {

      allowMissing_ = value;
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }
<pre>
Optional. If set and the workstation configuration is not found, a new
workstation configuration will be created. In this situation,
update_mask is ignored.
</pre>

<code>bool allow_missing = 4 [(.google.api.field_behavior) = OPTIONAL];</code>

@param value The allowMissing to set.
@return This builder for chaining.
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/UpdateWorkstationConfigRequest.java