class RSpec::Mocks::VerifyingMessageExpectation

def with(*args, &block)
  super(*args, &block).tap do
    validate_expected_arguments! do |signature|
      example_call_site_args = [:an_arg] * signature.min_non_kw_args
      example_call_site_args << :kw_args_hash if signature.required_kw_args.any?
      @argument_list_matcher.resolve_expected_args_based_on(example_call_site_args)
    end
  end
end