setup-node/node_modules/@octokit/graphql/lib/error.js

module.exports = class GraphqlError extends Error {
  constructor (request, response) {
    const message = response.data.errors[0].message
    super(message)

    Object.assign(this, response.data)
    this.name = 'GraphqlError'
    this.request = request

    // Maintains proper stack trace (only available on V8)
    /* istanbul ignore next */
    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, this.constructor)
    }
  }
}