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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 get_engine(engine):
 """ return our implementation """


    if engine == 'auto':
        engine = get_option('io.parquet.engine')

    if engine == 'auto':
        # try engines in this order
        try:
            return PyArrowImpl()
        except ImportError:
            pass

        try:
            return FastParquetImpl()
        except ImportError:
            pass

        raise ImportError("Unable to find a usable engine; "
                          "tried using: 'pyarrow', 'fastparquet'.\n"
                          "pyarrow or fastparquet is required for parquet "
                          "support")

    if engine not in ['pyarrow', 'fastparquet']:
        raise ValueError("engine must be one of 'pyarrow', 'fastparquet'")

    if engine == 'pyarrow':
        return PyArrowImpl()
    elif engine == 'fastparquet':
        return FastParquetImpl()