def roi_pooling(input, rois, pool_height, pool_width):
<EOL>out = roi_pooling_module.roi_pooling(input, rois, pool_height=pool_height, pool_width=pool_width)<EOL>output, argmax_output = out[<NUM_LIT:0>], out[<NUM_LIT:1>]<EOL>return output<EOL>
returns a tensorflow operation for computing the Region of Interest Pooling

@arg input: feature maps on which to perform the pooling operation
@arg rois: list of regions of interest in the format (feature map index, upper left, bottom right)
@arg pool_width: size of the pooling sections