public Builder clearText() {
      if (dataCase_ == 1) {
        dataCase_ = 0;
        data_ = null;
        onChanged();
      }
      return this;
    }
<pre>
Optional. Text part (can be code).
</pre>

<code>string text = 1 [(.google.api.field_behavior) = OPTIONAL];</code>

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