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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 np_lst_sq(vecMdl, aryFuncChnk):
 """Least squares fitting in numpy without cross-validation. Notes ----- This is just a wrapper function for np.linalg.lstsq to keep piping consistent. """

    aryTmpBts, vecTmpRes = np.linalg.lstsq(vecMdl,
                                           aryFuncChnk,
                                           rcond=-1)[:2]

    return aryTmpBts, vecTmpRes