TypeError:For primitive[MatMul], the input argument[x] must be a type of {Tensor[BFloat16], Tensor[Float16], Tensor[Float32], Tensor[Int32], Tensor[Int64], Tensor[UInt8]}, but got Tensor[Int8].

from mindspore import Tensor,ops
import numpy as np

ms.set_context(device_target="Ascend")
x = ms.Tensor(np.ones([1,3]).astype(np.int8))
x = ms.Tensor(np.ones([3,1]).astype(np.int8))
op = ops.matmul
z = op(x,y)
print(z)