public Builder setInputConfigs(
        int index, com.google.cloud.translate.v3.BatchDocumentInputConfig value) {
      if (inputConfigsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureInputConfigsIsMutable();
        inputConfigs_.set(index, value);
        onChanged();
      } else {
        inputConfigsBuilder_.setMessage(index, value);
      }
      return this;
    }
<pre>
Required. Input configurations.
The total number of files matched should be &lt;= 100.
The total content size to translate should be &lt;= 100M Unicode codepoints.
The files must use UTF-8 encoding.
</pre>

<code>
repeated .google.cloud.translation.v3.BatchDocumentInputConfig input_configs = 4 [(.google.api.field_behavior) = REQUIRED];
</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/BatchTranslateDocumentRequest.java