modify-query to modify the query string of the request sent to
the API server.
The payload for this advice is a JSON object. The keys are the names of the query parameters that must be modified, and the values are the new values of the parameters. A value can be one of the following options:
If the query parameter already exists on the request, it is
overwritten. If the query parameter does not already exist, it is
added. For example, if a request is made to a proxied API with a
request URL of