class_docstr: The base class for Keras style models in Analytics Zoo.
class_docstr_tok: ["The","base","class","for","Keras","style","models","in","Analytics","Zoo","."]
code: def evaluate(self, x, y=None, batch_size=32):
      return self.model.evaluate(x, y, batch_size)
  
imports: from bigdl.nn.layer import Container, Layer
  from bigdl.util.common import *
  from zoo.pipeline.api.keras.engine.topology import KerasNet
  from zoo.common.utils import callZooFunc
label_desc: Use image node_id 11 for calling the KerasZooModel obj's underlying member method code with example usage: obj.evaluate(x, y, batch_size) and returns: self