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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_registry_from_json(mongo, filename, clear_collection=False):
 """Initialize a model registry with a list of model definitions that are stored in a given file in Json format. Parameters mongo : scodata.MongoDBFactory Connector for MongoDB filename : string Path to file containing model definitions clear_collection : boolean If true, collection will be dropped before models are created """

    # Read model definition file (JSON)
    with open(filename, 'r') as f:
        models = json.load(f)
    init_registry(mongo, models, clear_collection)