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Computes the gradient of nearest neighbor interpolation.

grads A Tensor. Must be one of the following types: uint8, int8, int32, half, float32, float64. 4-D with shape [batch, height, width, channels].
size A 1-D int32 Tensor of 2 elements: orig_height, orig_width. The original input size.
align_corners An optional bool. Defaults to False. If true, the centers of the 4 corner pixels of the input and grad tensors are aligned. Defaults to false.
half_pixel_centers An optional bool. Defaults to False.
name A name for the operation (optional).

A Tensor. Has the same type as grads.