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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _states(self, state, processedstates=[]):
 #pylint: disable=dangerous-default-value """Iterate over all states in no particular order"""

        processedstates.append(state)

        for nextstate in state.epsilon:
            if not nextstate in processedstates:
                self._states(nextstate, processedstates)

        for _, nextstate in state.transitions:
            if not nextstate in processedstates:
                self._states(nextstate, processedstates)

        return processedstates