class_docstr: Base class for framework specfic Conv2d layer
class_docstr_tok: ["Base","class","for","framework","specfic","Conv2d","layer"]
code: def __str__(self):
      return "Convolution (num filters = {}, kernel size = {}, stride = {})".format(
          self.num_filters, self.kernel_size, self.strides
      )
  
file_path: coach/rl_coach/architectures/layers.py
label_desc: Use image node_id 2 for calling the Conv2d obj's underlying member method code with example usage: obj.__str__() and returns: str