docs: def create_nsg(access_token, subscription_id, resource_group, nsg_name, location):
      '''Create network security group (use create_nsg_rule() to add rules to it).
  
      Args:
          access_token (str): A valid Azure authentication token.
          subscription_id (str): Azure subscription id.
          resource_group (str): Azure resource group name.
          nsg_name (str): Name of the new NSG.
          location (str): Azure data center location. E.g. westus.
  
      Returns:
          HTTP response. NSG JSON body.
      '''
      endpoint = ''.join([get_rm_endpoint(),
                          '/subscriptions/', subscription_id,
                          '/resourceGroups/', resource_group,
                          '/providers/Microsoft.Network/networkSecurityGroups/', nsg_name,
                          '?api-version=', NETWORK_API])
      nsg_body = {'location': location}
      body = json.dumps(nsg_body)
      return do_put(endpoint, body, access_token)