<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def space(self):
 """Total Hilbert space"""

        args_spaces = (self.S.space, self.L.space, self.H.space)
        return ProductSpace.create(*args_spaces)