code: def matmul_vjp_0(ans, A, B):
      A_meta = anp.metadata(A)
      B_ndim = anp.ndim(B)
      return lambda g: matmul_adjoint_0(B, g, A_meta, B_ndim)
  
imports: from __future__ import absolute_import
  from six import string_types
  from functools import partial
  import numpy
  from ..util import func
  from .None import numpy_wrapper
  from .numpy_boxes import ArrayBox
  from autograd.extend import primitive, vspace, defvjp, defvjp_argnum, SparseObject, VJPNode, register_notrace
label_desc: Use image node_id 21 for calling a global function with example usage: matmul_vjp_0(ans, A, B) and returns: function