def releaseRessources(self, command):
        #res = self.usedCoresNumber[command.id]
        self.freeCoresNumber = self.coresNumber
        if command.id is not self.usedCoresNumber:
            del self.usedCoresNumber[command.id]

        #res = self.usedRam[command.id]
        self.freeRam = self.ramSize
        if command.id in self.usedRam:
            del self.usedRam[command.id]

    ## Unassign a finished command
    #
dataset/ETHPy150Open mikrosimage/OpenRenderManagement/src/octopus/dispatcher/model/rendernode.py/RenderNode.releaseRessources/operator `in` -> `is not`