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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 save_intrinsic_alias(module):
 """ Recursively save default aliases for pythonic functions. """

    for v in module.values():
        if isinstance(v, dict):  # Submodules case
            save_intrinsic_alias(v)
        else:
            IntrinsicAliases[v] = frozenset((v,))
            if isinstance(v, Class):
                save_intrinsic_alias(v.fields)