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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 isrot(m, ntol, dtol):
 """ Indicate whether a 3x3 matrix is a rotation matrix. http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/isrot_c.html :param m: A matrix to be tested. :type m: 3x3-Element Array of floats :param ntol: Tolerance for the norms of the columns of m. :type ntol: float :param dtol: Tolerance for the determinant of a matrix whose columns are the unitized columns of m. :type dtol: float :return: True if and only if m is a rotation matrix. :rtype: bool """

    m = stypes.toDoubleMatrix(m)
    ntol = ctypes.c_double(ntol)
    dtol = ctypes.c_double(dtol)
    return bool(libspice.isrot_c(m, ntol, dtol))