parameters: (self, substituter)
docstring: Applies substitutions to all messages in the gatherer.
  
      Args:
        substituter: a grit.util.Substituter object.
docstring_summary: Applies substitutions to all messages in the gatherer.
docstring_tokens: Applies substitutions to all messages in the gatherer .
function: def SubstituteMessages(self, substituter):
      '''Applies substitutions to all messages in the gatherer.
  
      Args:
        substituter: a grit.util.Substituter object.
      '''
      pass
function_tokens: def SubstituteMessages ( self , substituter ) : pass