public Builder clearContents() {
      contents_ = com.google.protobuf.LazyStringArrayList.emptyList();
      bitField0_ = (bitField0_ & ~0x00000002);
      ;
      onChanged();
      return this;
    }
<pre>
Required. The content of the input in string format.
</pre>

<code>repeated string contents = 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/RomanizeTextRequest.java