Function tuple_insert

imperative/python/megengine/xla/utils.py:93–95

(t, idx, val)

# (a, b, c), 1, x -> (a, x, b, c)
def tuple_insert(t, idx, val):
    assert 0 <= idx <= len(t), (idx, len(t))
    return t[:idx] + (val,) + t[idx:]