Variant Name Error

[kk19990709]

In https://github.com/NVIDIA/apex/tree/master/apex/parallel

import apex
input_t = torch.randn(3, 5, 20).cuda()
sbn = apex.parallel.SyncBatchNorm(5).cuda()
output_t = sbn(input)

SHOULD BE

import apex
input_t = torch.randn(3, 5, 20).cuda()
sbn = apex.parallel.SyncBatchNorm(5).cuda()
output_t = sbn(input_t)