code: def __init__(
      self, transa=False, transb=False, transc=False, dtype=None
  ):
      self.transa = transa
      self.transb = transb
      self.transc = transc
      self.dtype = dtype
  
imports: import warnings
  import numpy
  from chainer import backend
  from chainer.backends import cuda
  from chainer import function_node
  import chainer.functions
  from chainer import utils
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 1 to create a new MatMul object from inherited base classes: function_node with example: obj = MatMul(transa, transb, transc, dtype)