public Builder clearModality() {
        modality_ = getDefaultInstance().getModality();
        bitField0_ = (bitField0_ & ~0x00000008);
        onChanged();
        return this;
      }
<pre>
Modality of the feature. Valid values are: numeric, image. Defaults to
numeric.
</pre>

<code>string modality = 4;</code>

@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ExplanationMetadata.java