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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 _dict_merge(dct, merge_dct):
 """Recursive dict merge. Inspired by :meth:``dict.update()``, instead of updating only top-level keys, dict_merge recurses down into dicts nested to an arbitrary depth, updating keys. The ``merge_dct`` is merged into ``dct``. From https://gist.github.com/angstwad/bf22d1822c38a92ec0a9 Arguments: dct: dict onto which the merge is executed merge_dct: dct merged into dct """

    for k, v in merge_dct.items():
        if (k in dct and isinstance(dct[k], dict)
                and isinstance(merge_dct[k], collections.Mapping)):
            _dict_merge(dct[k], merge_dct[k])
        else:
            dct[k] = merge_dct[k]