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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 dicts_to_dict(dictionaries, key_subfieldname):
 """Convert a list of dictionaries into a dictionary of dictionaries. key_subfieldname must exist in each Record's subfields and have a value, which will be used as the key for the new dictionary. If a key is duplicated, the earlier value will be overwritten. """

    result = {}
    for d in dictionaries:
        result[d[key_subfieldname]] = d
    return result