public Builder clearParent() {
      parent_ = getDefaultInstance().getParent();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
Required. Location to make a regional call.

Format: `projects/{project-number-or-id}/locations/{location-id}`.

For global calls, use `projects/{project-number-or-id}/locations/global` or
`projects/{project-number-or-id}`.

Non-global location is required for requests using AutoML models or custom
glossaries.

Models and glossaries must be within the same region (have the same
location-id), otherwise an INVALID_ARGUMENT (400) error is returned.
</pre>

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

@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/TranslateDocumentRequest.java