#NEWLINE# @ handle_exceptions_for_ajax #NEWLINE# def get( self , request , project_id , observation_id ) : #NEWLINE# #INDENT# '\n        Returns a single contribution\n\n        Parameters\n        ----------\n        request : rest_framework.request.Request\n            Represents the request\n        project_id : int\n            identifies the project in the data base\n        observation_id : int\n            identifies the observation in the data base\n\n        Returns\n        -------\n        rest_framework.response.Respone\n            Contains the serialised observation\n        ' #NEWLINE# contribution = self . get_contribution ( request . user , project_id , observation_id ) #NEWLINE# return self . get_and_respond ( request , contribution )