def METHOD_NAME():
    from pymilvus import CollectionSchema, FieldSchema
    fields = [
        FieldSchema(gen_field_name(), DataType.INT64, is_primary=True, auto_id=False),
        FieldSchema(gen_field_name(), DataType.FLOAT),
        FieldSchema(gen_field_name(), DataType.FLOAT_VECTOR, dim=default_dim)
    ]
    collection_schema = CollectionSchema(fields)
    return collection_schema