docstr: :return: None if without weights
docstr_tok: [":","return",":","None","if","without","weights"]
code: def get_weights_shape(self):
      """
      :return: None if without weights
      """
      jshapes = callZooFunc(
          self.bigdl_type, "zooGetWeightsShape", self.value
      )
      return [tuple(jshape) for jshape in jshapes]
  
imports: from bigdl.dllib.nn.layer import Layer
  from bigdl.dllib.utils.common import *
  from bigdl.dllib.utils.file_utils import callZooFunc
  from bigdl.dllib.utils.log4Error import *
label_desc: Use image node_id 2 for calling the ZooKerasLayer obj's underlying member method code with example usage: obj.get_weights_shape() and returns: unknown