@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<pre>
If the `keyword_searchable` flag is true, the keywords in custom fields are
searchable by keyword match.
If false, the values are not searchable by keyword match.

Default is false.
</pre>

<code>bool keyword_searchable = 4;</code>

@return The keywordSearchable.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/CustomAttribute.java