          labels_discard=labels_discard,
          incl_prior=incl_prior,
          incl_context=incl_context,
          get_candidates=get_candidates,
      )
  
  
  class EntityLinker(Pipe):
 
</s> remove         kb_loader=kb_loader,
 </s> add  </s> remove         kb_loader: Callable[[Vocab], KnowledgeBase],
 </s> add  </s> remove         self._require_kb()
 </s> add         self.validate_kb()
        entity_vector_length=entity_vector_length,
          labels_discard=labels_discard,
          incl_prior=incl_prior,
          incl_context=incl_context,
        entity_vector_length=entity_vector_length,
          get_candidates=get_candidates,
      )
  
  
  class EntityLinker(Pipe):
keep keep add keep keep keep keep keep
 move kb_loader to initialize for NEL instead of constructor 
spacy/pipeline/entity_linker.py