let _accessToken = null;

/**
 * Set the current OAuth access token for Bearer authentication.
 * @param {string|null} token
 */
export function setAccessToken(token) {
  _accessToken = token || null;
}

/**
 * Get the current access token.
 * @returns {string|null}
 */
export function getAccessToken() {
  return _accessToken;
}

/**
 * Clear the stored access token.
 */
export function clearAccessToken() {
  _accessToken = null;
}