def append(self, var, value, create=False):
        if create:
            cur = self.get(var, [])
            self[var] = cur
        else:
            cur = self[var]
        cur.append(value)
Append a single item to the variable var.
dataset/ETHPy150Open cournape/Bento/bento/private/_yaku/yaku/environment.py/Environment.append