def get(uri, query = nil, headers = {})
      request :get, uri, query: query, headers: headers
    end
def get(uri, query = nil, headers = {})
      request :get, uri, query: query, headers: headers
    end
Send a GET request.
 @param uri [String] the uri path for this request.
 @param query [Hash] the set of url query parameters.
 @param headers [Hash] additional headers to send in this request.
 @return (see #request)