docs: def create_lb_with_nat_pool(access_token, subscription_id, resource_group, lb_name, public_ip_id,
                              fe_start_port, fe_end_port, backend_port, location):
      '''Create a load balancer with inbound NAT pools.
  
      Args:
          access_token (str): A valid Azure authentication token.
          subscription_id (str): Azure subscription id.
          resource_group (str): Azure resource group name.
          lb_name (str): Name of the new load balancer.
          public_ip_id (str): Public IP address resource id.
          fe_start_port (int): Start of front-end port range.
          fe_end_port (int): End of front-end port range.
          backend_port (int): Back end port for VMs.
          location (str): Azure data center location. E.g. westus.
  
      Returns:
          HTTP response. Load Balancer JSON body.
      '''
      endpoint = ''.join([get_rm_endpoint(),
                          '/subscriptions/', subscription_id,
                          '/resourceGroups/', resource_group,
                          '/providers/Microsoft.Network/loadBalancers/', lb_name,
                          '?api-version=', NETWORK_API])
      lb_body = {'location': location}
      frontendipcconfig = {'name': 'LoadBalancerFrontEnd'}
      fipc_properties = {'publicIPAddress': {'id': public_ip_id}}
      frontendipcconfig['properties'] = fipc_properties
      properties = {'frontendIPConfigurations': [frontendipcconfig]}
      properties['backendAddressPools'] = [{'name': 'bepool'}]
      inbound_natpool = {'name': 'natpool'}
      lbfe_id = '/subscriptions/' + subscription_id + '/resourceGroups/' + resource_group + \
          '/providers/Microsoft.Network/loadBalancers/' + lb_name + \
          '/frontendIPConfigurations/LoadBalancerFrontEnd'
      ibnp_properties = {'frontendIPConfiguration': {'id': lbfe_id}}
      ibnp_properties['protocol'] = 'tcp'
      ibnp_properties['frontendPortRangeStart'] = fe_start_port
      ibnp_properties['frontendPortRangeEnd'] = fe_end_port
      ibnp_properties['backendPort'] = backend_port
      inbound_natpool['properties'] = ibnp_properties
      properties['inboundNatPools'] = [inbound_natpool]
      lb_body['properties'] = properties
      body = json.dumps(lb_body)
      return do_put(endpoint, body, access_token)