class Grape::Validations::Validators::RegexpValidator

def validate_param!(attr_name, params)
  return unless params.respond_to?(:key?) && params.key?(attr_name)
  return if Array.wrap(params[attr_name]).all? { |param| param.nil? || param.to_s.scrub.match?((options_key?(:value) ? @option[:value] : @option)) }
  raise Grape::Exceptions::Validation.new(params: [@scope.full_name(attr_name)], message: message(:regexp))
end