class_docstr: Tagger base class that defines the interface. 
class_docstr_tok: ["Tagger","base","class","that","defines","the","interface","."]
code: def _load_network(self):
      raise NotImplementedError()
  
imports: import numpy
  from six.moves import range
  from ..decorators import memoize
  from ..load import load_embeddings, load_ner_model, load_pos_model, load_unified_pos_model
label_desc: Use image node_id 3 for calling the TaggerBase obj's underlying member method code with example usage: obj._load_network() without return types