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import torch
from bert import BertModel
sanity_data = torch.load("./sanity_check.data", weights_only=True)
sent_ids = torch.tensor([[101, 7592, 2088, 102, 0, 0, 0, 0],
[101, 7592, 15756, 2897, 2005, 17953, 2361, 102]])
att_mask = torch.tensor([[1, 1, 1, 1, 0, 0, 0, 0],[1, 1, 1, 1, 1, 1, 1, 1]])
# Load model.
bert = BertModel.from_pretrained('bert-base-uncased')
outputs = bert(sent_ids, att_mask)
att_mask = att_mask.unsqueeze(-1)
outputs['last_hidden_state'] = outputs['last_hidden_state'] * att_mask
sanity_data['last_hidden_state'] = sanity_data['last_hidden_state'] * att_mask
for k in ['last_hidden_state', 'pooler_output']:
assert torch.allclose(outputs[k], sanity_data[k], atol=1e-5, rtol=1e-3)
print("Your BERT implementation is correct!")
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