[Rails] How to get local variable name from object id or memory reference in ruby?

Follow the code :-


class Sample
def bar
p method(__method__).receiver # only `self` would do the trick.
end
end

n1=Sample.new # => #<Sample:0x13bc648>
n2=Sample.new # => #<Sample:0x13bc630>

n1.bar # => #<Sample:0x13bc648>
n2.bar # => #<Sample:0x13bc630>

But this is my try. I am looking for any method is available in
Ruby,into which say if I pas n1.object_id or #<Sample:0x13bc648>,I will
get back in return the local variable name say here it is - n1 ?

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