public Builder addAllContents(java.lang.Iterable<java.lang.String> values) {
      ensureContentsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, contents_);
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Required. The content of the input in string format.
We recommend the total content be less than 30k codepoints. The max length
of this field is 1024.
Use BatchTranslateText for larger text.
</pre>

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

@param values The contents to add.
@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/TranslateTextRequest.java