code: def layer_tagger_mapping(self):
          
          return {
              PARAGRAPHS: self.tokenize_paragraphs,
              SENTENCES: self.tokenize_sentences,
              WORDS: self.tokenize_words,
              ANALYSIS: self.tag_analysis,
              TIMEXES: self.tag_timexes,
              NAMED_ENTITIES: self.tag_named_entities,
              CLAUSE_ANNOTATION: self.tag_clause_annotations,
              CLAUSES: self.tag_clauses,
              LAYER_CONLL:   self.tag_syntax_vislcg3,
              LAYER_VISLCG3: self.tag_syntax_maltparser,
              WORDNET: self.tag_wordnet
          }
docs: Dictionary that maps layer names to taggers that can create that layer.