public Builder clearReadMask() {
      bitField0_ = (bitField0_ & ~0x00000010);
      readMask_ = null;
      if (readMaskBuilder_ != null) {
        readMaskBuilder_.dispose();
        readMaskBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Optional. Mask specifying which fields to read.
</pre>

<code>.google.protobuf.FieldMask read_mask = 5 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ListEndpointsRequest.java