code: def _inplace_axpy(a, x, y):
      for i in range(len(x)):
          y[i] += a * x[i]
  
imports: import logging
  from collections import namedtuple
  import numpy
  from numba import njit, prange
  from csr import CSR
  from seedbank import numpy_rng
  from .bias import Bias
  from .mf_common import MFPredictor
  from ..data import sparse_ratings
  from ..None import util
  from ..math.solve import _dposv
label_desc: Use image node_id 1 for calling a global function with example usage: _inplace_axpy(a, x, y) without return types