def METHOD_NAME(gbq_type):
    import pandas as pd
    if isinstance(gbq_type, TimestampType):
        return ValueType.DATETIME
    type_map = {
        "STRING": "object",
        "BOOL": "bool",
        "FLOAT": "float64",
        "INTEGER": pd.Int64Dtype(),
        "TIMESTAMP": "datetime64[ns]",
    }
    return type_map.get(gbq_type, "object")