# Call starts here:
#aasm/lib/aasm/aasm.rb @ line 113
if may_fire_to = event.may_fire?(self, *args)

#which leads to following parameter conversion:
#aasm/lib/aasm/core/event.rb @ line 44 AASM::Core::Event#may_fire?


    43: def may_fire?(obj, to_state=nil, *args)
 => 44:   binding.pry if args.size == 1
    45:     puts "#{caller[0]}\t#{args.to_s}" # debug
    46:   _fire(obj, {:test_only => true}, to_state, *args) # true indicates test firing
    47: end

[1] pry(#<AASM::Core::Event>)> to_state
=> nil
[2] pry(#<AASM::Core::Event>)> args
=> ["yuppi"]