public Builder mergeConstraints(
        com.google.webrisk.v1beta1.ComputeThreatListDiffRequest.Constraints value) {
      if (constraintsBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && constraints_ != null
            && constraints_
                != com.google.webrisk.v1beta1.ComputeThreatListDiffRequest.Constraints
                    .getDefaultInstance()) {
          getConstraintsBuilder().mergeFrom(value);
        } else {
          constraints_ = value;
        }
      } else {
        constraintsBuilder_.mergeFrom(value);
      }
      if (constraints_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Required. The constraints associated with this request.
</pre>

<code>
.google.cloud.webrisk.v1beta1.ComputeThreatListDiffRequest.Constraints constraints = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/ComputeThreatListDiffRequest.java