try this:

!wget -q https://raw.githubusercontent.com/JohnSnowLabs/spark-nlp-workshop/master/jupyter/training/english/dl-ner/nerdl-graph/create_graph.py

!wget -q https://raw.githubusercontent.com/JohnSnowLabs/spark-nlp-workshop/master/jupyter/training/english/dl-ner/nerdl-graph/dataset_encoder.py

!wget -q https://raw.githubusercontent.com/JohnSnowLabs/spark-nlp-workshop/master/jupyter/training/english/dl-ner/nerdl-graph/ner_model.py

!wget -q https://raw.githubusercontent.com/JohnSnowLabs/spark-nlp-workshop/master/jupyter/training/english/dl-ner/nerdl-graph/ner_model_saver.py

!wget -q https://raw.githubusercontent.com/JohnSnowLabs/spark-nlp-workshop/master/jupyter/training/english/dl-ner/nerdl-graph/sentence_grouper.py

import sys

sys.path.append('/databricks/driver/')

sys.path.append('/databricks/driver/create_graph.py')

import create_graph

ntags = 19 # number of labels

embeddings_dim = 100

nchars =100

create_graph.create_graph(ntags, embeddings_dim, nchars)