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Subtracts v into specified rows of x.

Computes y = x; y[i, :] -= v; return y.

x A Tensor. A Tensor of type T.
i A Tensor of type int32. A vector. Indices into the left-most dimension of x.
v A Tensor. Must have the same type as x. A Tensor of type T. Same dimension sizes as x except the first dimension, which must be the same as i's size.
name A name for the operation (optional).

A Tensor. Has the same type as x.