def __init__(self, A, A_1_norm, a, mu, dtype, ell=2):
    '\n        Provide the operator and some norm-related information.\n\n        Parameters\n        -----------\n        A : linear operator\n            The operator of interest.\n        A_1_norm : float\n            The exact 1-norm of A.\n        ell : int, optional\n            A technical parameter controlling norm estimation quality.\n\n        '
    self._A = A
    self._a = a
    self._mu = mu
    self._dtype = dtype
    self._A_1_norm = A_1_norm
    self._ell = ell
    self._d = {}
Provide the operator and some norm-related information.

Parameters
-----------
A : linear operator
    The operator of interest.
A_1_norm : float
    The exact 1-norm of A.
ell : int, optional
    A technical parameter controlling norm estimation quality.
def __init__(self, A, A_1_norm, a, mu, dtype, ell=2):
    '\n        Provide the operator and some norm-related information.\n\n        Parameters\n        -----------\n        A : linear operator\n            The operator of interest.\n        A_1_norm : float\n            The exact 1-norm of A.\n        ell : int, optional\n            A technical parameter controlling norm estimation quality.\n\n        '
    self._A = A
    self._a = a
    self._mu = mu
    self._dtype = dtype
    self._A_1_norm = A_1_norm
    self._ell = ell
    self._d = {}