Given a class, see if instance has method (Ruby)

Given a class, see if instance has method (Ruby)

I know in Ruby that I can use respond_to? to check if an object has a certain method.

I know in Ruby that I can use respond_to? to check if an object has a certain method.

But, given the class, how can I check if the instance has a certain method?

i.e, something like

But I feel like there's gotta be a better way than instantiating a new instance.

ruby ruby-on-rails

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