hashQuery (name, query, opts) {
    return utils.toJson(query || {})
  }
Hashing function used to cache {@link SimpleStore#find} and
{@link SimpleStore#findAll} requests. This method simply JSONifies the
`query` argument passed to {@link SimpleStore#find} or
{@link SimpleStore#findAll}.

Override this method for custom hashing behavior.
@method SimpleStore#hashQuery
@param {string} name The `name` argument passed to {@link SimpleStore#find}
or {@link SimpleStore#findAll}.
@param {object} query The `query` argument passed to {@link SimpleStore#find}
or {@link SimpleStore#findAll}.
@returns {string} The JSONified `query`.
@since 3.0.0