public Builder addAllLanguageHints(java.lang.Iterable<java.lang.String> values) {
      ensureLanguageHintsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, languageHints_);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Language hint can be specified if the language to be detected is known a
priori. It can increase the accuracy of the detection. Language hint must
be language code in BCP-47 format.

Automatic language detection is performed if no hint is provided.
</pre>

<code>repeated string language_hints = 1;</code>

@param values The languageHints to add.
@return This builder for chaining.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p2beta1/src/main/java/com/google/cloud/videointelligence/v1p2beta1/TextDetectionConfig.java