ImportError: cannot import name 'bidirectional_rnn'

File "/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/Users/srijanr/fyp17/Question-Answering/Allanai-fyp/bi-att-flow/basic/cli.py", line 5, in
from basic.main import main as m
File "/Users/srijanr/fyp17/Question-Answering/Allanai-fyp/bi-att-flow/basic/main.py", line 14, in
from basic.model import get_multi_gpu_models
File "/Users/srijanr/fyp17/Question-Answering/Allanai-fyp/bi-att-flow/basic/model.py", line 11, in
from my.tensorflow.rnn import bidirectional_dynamic_rnn
File "/Users/srijanr/fyp17/Question-Answering/Allanai-fyp/bi-att-flow/my/tensorflow/rnn.py", line 4, in
from tensorflow.python.ops.rnn import bidirectional_rnn as _bidirectional_rnn

What can be the solution for it?