public static com.google.cloud.translate.v3.DocumentInputConfig parseDelimitedFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
        PARSER, input, extensionRegistry);
  }
<pre>
Specifies the input document's mime_type.

If not specified it will be determined using the file extension for
gcs_source provided files. For a file provided through bytes content the
mime_type must be provided.
Currently supported mime types are:
- application/pdf
- application/vnd.openxmlformats-officedocument.wordprocessingml.document
- application/vnd.openxmlformats-officedocument.presentationml.presentation
- application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
</pre>

<code>string mime_type = 4;</code>

@return The bytes for mimeType.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/DocumentInputConfig.java