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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_fill(arr: ABCSparseArray) -> np.ndarray: """ Create a 0-dim ndarray containing the fill value Parameters arr : SparseArray Returns ------- fill_value : ndarray 0-dim ndarray with just the fill value. Notes ----- coerce fill_value to arr dtype if possible int64 SparseArray can have NaN as fill_value if there is no missing """

    try:
        return np.asarray(arr.fill_value, dtype=arr.dtype.subtype)
    except ValueError:
        return np.asarray(arr.fill_value)