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(any? "") # => nil (any? "Hello") # => 72 (any? @"Hello") # => 72 (any? @[]) # => nil (any? []) # => nil (any? {}) # => nil (any? @{}) # => nil (any? @[1 2 3 4]) # => 1 (any? @{:a 2 :b 3}) # => 2