private void ensureLanguageCodesIsMutable() {
      if (!languageCodes_.isModifiable()) {
        languageCodes_ = new com.google.protobuf.LazyStringArrayList(languageCodes_);
      }
      bitField0_ |= 0x00000004;
    }
<pre>
Required. The query used to generate suggestions.

The maximum number of allowed characters is 255.
</pre>

<code>string query = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@param value The bytes for query to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/CompleteQueryRequest.java