class RSpec::Mocks::VerifyingExistingClassNewMethodDouble

@private
the method signature from ‘#initialize` since new’s signature is just ‘*args`.
of mocking or stubbing a `new` method on a class. In this case, we substitute
Used in place of a `VerifyingExistingMethodDouble` for the specific case

def with_signature 

def with_signature
  yield Support::MethodSignature.new(object.instance_method(:initialize))
end