class ActiveSupport::Deprecation::DeprecatedObjectProxy

Default deprecator is ActiveSupport::Deprecation
trigger warn method on deprecator_instance.
When someone executes any method except inspect on proxy object this will
@old_object = DeprecatedObjectProxy.new(Object.new, “Don’t use this object anymore!”, deprecator_instance)
@old_object = DeprecatedObjectProxy.new(Object.new, “Don’t use this object anymore!”)
This DeprecatedObjectProxy transforms object to deprecated object.

def initialize(object, message, deprecator = ActiveSupport::Deprecation.instance) 

def initialize(object, message, deprecator = ActiveSupport::Deprecation.instance)
  @object = object
  @message = message
  @deprecator = deprecator
end

def target 

def target
  @object
end

def warn(callstack, called, args) 

def warn(callstack, called, args)
  @deprecator.warn(@message, callstack)
end