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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 init_algebra(*, default_hs_cls='LocalSpace'):
 """Initialize the algebra system Args: default_hs_cls (str):
 The name of the :class:`.LocalSpace` subclass that should be used when implicitly creating Hilbert spaces, e.g. in :class:`.OperatorSymbol` """

    from qnet.algebra.core.hilbert_space_algebra import LocalSpace
    from qnet.algebra.core.abstract_quantum_algebra import QuantumExpression
    default_hs_cls = getattr(importlib.import_module('qnet'), default_hs_cls)
    if issubclass(default_hs_cls, LocalSpace):
        QuantumExpression._default_hs_cls = default_hs_cls
    else:
        raise TypeError("default_hs_cls must be a subclass of LocalSpace")