node_modules/eslint-plugin-promise/rules/lib/is-named-callback.js

var callbacks = ['done', 'cb', 'callback', 'next']

module.exports = function isNamedCallback (potentialCallbackName, exceptions) {
  for (var i = 0; i < exceptions.length; i++) {
    callbacks = callbacks.filter(function (item) { return item !== exceptions[i] })
  }
  return callbacks.some(function (trueCallbackName) {
    return potentialCallbackName === trueCallbackName
  })
}