public Builder clearFailedCharacters() {
      bitField0_ = (bitField0_ & ~0x00000004);
      failedCharacters_ = 0L;
      onChanged();
      return this;
    }
<pre>
Number of characters that have failed to process (Unicode codepoints).
</pre>

<code>int64 failed_characters = 3;</code>

@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/BatchTranslateResponse.java