class RSpec::Mocks::InstanceMethodReference

def find_method(mod)
  mod.dup.instance_method(@method_name)
end

def find_method(mod)
  mod.instance_method(@method_name)
end

def method_implemented?(mod)
  MethodReference.method_defined_at_any_visibility?(mod, @method_name)
end

def visibility_from(mod)
  MethodReference.instance_method_visibility_for(mod, @method_name)
end