@handle_exceptions_for_ajax
    def get(self, request, project_id, observation_id):
        contribution = self.get_contribution(
            request.user,
            project_id,
            observation_id
        )

        return self.get_and_respond(request, contribution)
Returns a single contribution
dataset/ETHPy150Open ExCiteS/geokey/geokey/contributions/views/observations.py/SingleAllContributionAPIView.get