module Pry::Forwardable

def def_private_delegators(target, *private_delegates)


private method to another.
That's why we revert to a custom implementation for delegating one

in the future it could be an error: https://bugs.ruby-lang.org/issues/12782#note-3
calling a method that is private on a delegate, and
Since Ruby 2.4, Forwardable will print a warning when
def def_private_delegators(target, *private_delegates)
  private_delegates.each do |private_delegate|
    define_method(private_delegate) do |*a, &b|
      instance_variable_get(target).__send__(private_delegate, *a, &b)
    end
  end
  class_eval do
    private(*private_delegates) # rubocop:disable Style/AccessModifierDeclarations
  end
end