parameters: (self, stringtable)
docstring: stringtable is a dict {langcode: {id: string}}
docstring_summary: stringtable is a dict {langcode: {id: string}}
docstring_tokens: stringtable is a dict { langcode : { id : string }}
function: def fill_from(self, stringtable):
          """
          stringtable is a dict {langcode: {id: string}}
          """
          for lang, langstrings in stringtable.items():
              self.strings[lang].update(langstrings)
function_tokens: def fill_from ( self , stringtable ) : for lang , langstrings in stringtable . items ( ) : self . strings [ lang ] . update ( langstrings )