I've been following a tensorflow tutorial https://www.tensorflow.org/official_models/fine_tuning_bert
In the first code snippet, I saw a lot of imports from official module
import numpy as np
import matplotlib.pyplot as plt
import tensorflow as tf
import tensorflow_hub as hub
import tensorflow_datasets as tfds
tfds.disable_progress_bar()
from official.modeling import tf_utils
from official import nlp
from official.nlp import bert
# Load the required submodules
import official.nlp.optimization
import official.nlp.bert.bert_models
import official.nlp.bert.configs
import official.nlp.bert.run_classifier
import official.nlp.bert.tokenization
import official.nlp.data.classifier_data_lib
import official.nlp.modeling.losses
import official.nlp.modeling.models
import official.nlp.modeling.networks
And problem is that i found no module name official. I guess this official module somehow related to problem specific or for BERT model(from tf-hub). As bert model uses specific text preprocessing and official module is providing this.
So, where i can find, download, use and make imports from this official module to work? I've been using python 3.7, tf-2.2, tf-hub-0.8.0
Please help me out