class_docstr: Sentence LDA Document, inherited from LDADoc.
  Add add_sentence interface.
class_docstr_tok: ["Sentence","LDA","Document",",","inherited","from","LDADoc",".","Add","add_sentence","interface","."]
code: def sent(self, index):
      return self.__sentences[index]
  
imports: import numpy
label_desc: Use image node_id 6 for calling the SLDADoc obj's underlying member method code with example usage: obj.sent(index) and returns: self