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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 get_module(path):
 """ A modified duplicate from Django's built in backend retriever. slugify = get_module('django.template.defaultfilters.slugify') """

    try:
        from importlib import import_module
    except ImportError as e:
        from django.utils.importlib import import_module

    try:
        mod_name, func_name = path.rsplit('.', 1)
        mod = import_module(mod_name)
    except ImportError as e:
        raise ImportError(
            'Error importing alert function {0}: "{1}"'.format(mod_name, e))

    try:
        func = getattr(mod, func_name)
    except AttributeError:
        raise ImportError(
            ('Module "{0}" does not define a "{1}" function'
                            ).format(mod_name, func_name))

    return func