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module Debug
def whoAmI?
"#{self.type.name} (\##{self.id}): #{self.to_s}"
end
end
class Phonograph
include Debug
def initialize(title)
@title = title
end
def type
self.class
end
def id
self.object_id
end
def to_s
@title
end
end
class EightTrack
include Debug
def initialize(title)
@title = title
end
def type
self.class
end
def id
self.object_id
end
def to_s
@title
end
end
ph = Phonograph.new("West End Blues")
et = EightTrack.new("Surrealistic Pillow")
ph.whoAmI?
et.whoAmI?
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