public java.lang.String getQueryParameter() {
        java.lang.Object ref = queryParameter_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          queryParameter_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
<pre>
Optional. The query parameter in which to find the token.

The name must be 1-64 characters long and match
the regular expression `[a-zA-Z]([a-zA-Z0-9_-])*` which means the
first character must be a letter, and all following characters
must be a dash, underscore, letter or digit.

Defaults to `edge-cache-token`.
</pre>

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

@return The queryParameter.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/MediaCdnKey.java