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","."]
docstr: Return number of sentences in SLDADoc.
          
docstr_tok: ["Return","number","of","sentences","in","SLDADoc","."]
code: def size(self):
      """Return number of sentences in SLDADoc."""
      return len(self.__sentences)
  
imports: import numpy
label_desc: Use image node_id 5 for calling the SLDADoc obj's underlying member method code with example usage: obj.size() and returns: len