public Builder mergeGroup(com.google.cloud.vmmigration.v1.Group value) {
      if (groupBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && group_ != null
            && group_ != com.google.cloud.vmmigration.v1.Group.getDefaultInstance()) {
          getGroupBuilder().mergeFrom(value);
        } else {
          group_ = value;
        }
      } else {
        groupBuilder_.mergeFrom(value);
      }
      if (group_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Required. The update request body.
</pre>

<code>.google.cloud.vmmigration.v1.Group group = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/UpdateGroupRequest.java