code: def layer_str(self):
      return "C%d,%d,%d" % (
          self.filter_num,
          self.kernel_size,
          self.strides,
      )
  
imports: from .basic_model import BasicModel
  import tensorflow
  import numpy
  import copy
label_desc: Use image node_id 2 for calling the ConvLayer obj's underlying member method code with example usage: obj.layer_str() and returns: unknown