fetcher = (variables, token) => {
  const query = variables.after ? GRAPHQL_REPOS_QUERY : GRAPHQL_STATS_QUERY;
  return request(
    {
      query,
      variables,
    },
    {
      Authorization: `bearer ${token}`,
    },
  );
}
Stats fetcher object.

@param {object} variables Fetcher variables.
@param {string} token GitHub token.
@returns {Promise<AxiosResponse>} Axios response.