@java.lang.Override
    public java.lang.String getAtomKey() {
      java.lang.Object ref = atomKey_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        atomKey_ = s;
        return s;
      }
    }
<pre>
Required. The `EditAtom.key` that references atom with text inputs in the
`Job.edit_list`.
</pre>

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

@return The atomKey.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/TextStream.java