How to fix NameError: name 'requests' is not defined in the Deforum Stable Diffusion v0.5

How to fix that in Deforum Stable Diffusion v0.5
Google Colab?

After the filling my UserName and Token in Selest and Load model graph I received message:

Using config: ./stable-diffusion/configs/stable-diffusion/v1-inference.yaml
This model requires an authentication token
Please ensure you have accepted its terms of service before continuing.
What is your huggingface username?:Spasoff
What is your huggingface token?: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
Attempting to download sd-v1-4.ckpt…this may take a while

NameError Traceback (most recent call last)
95 # contact server for model
96 print(f"Attempting to download {model_checkpoint}…this may take a while")
—> 97 ckpt_request = requests.get(url)
98 request_status = ckpt_request.status_code

NameError: name ‘requests’ is not defined