def get_start_end_index(self, startJoint=None, endJoint=None):
        # Sets the default values
        if startJoint is None:
            startJoint = self.jointRoot
        if endJoint is None:
            endJoint = self.jointChain[1 - self.numOfJoints]
            #Gets the Index of the Start Joint and End Joint
        startIndex = self.get_index_of_joint(startJoint)
        endIndex = self.get_index_of_joint(endJoint)
        return startIndex, endIndex
dataset/ETHPy150Open eoyilmaz/anima/anima/rig/joint.py/JointChain.get_start_end_index/swapped operands of `-`