text: const Errors = require('@persistr/server-errors')
  module.exports = class UnknownTokenScheme extends Errors.PersistrError {
    constructor ({ scheme, error }) {
      if (error) { super(`Unknown token scheme: ${scheme}\nWhat went wrong:\n${error.message}`, 401); return }
      super(`Unknown token scheme: ${scheme}`, 401)
    }
  }
  