def qasm(self):
    'Return OPENQASM string.'
    ctl = self.arg[0]
    tgt = self.arg[1]
    theta = self.param[0]
    return self._qasmif(('rzz(%s) %s[%d],%s[%d];' % (theta, ctl[0].name, ctl[1], tgt[0].name, tgt[1])))
Return OPENQASM string.
def qasm(self):
    
    ctl = self.arg[0]
    tgt = self.arg[1]
    theta = self.param[0]
    return self._qasmif(('rzz(%s) %s[%d],%s[%d];' % (theta, ctl[0].name, ctl[1], tgt[0].name, tgt[1])))