code: def get_vpc_dict():
    
  
    client = get_ec2_client()
    response = client.describe_vpcs()
    assert is_good_response(response)
  
    result = OrderedDict()
    ec2 = get_ec2_resource()
    for vpc_response in response['Vpcs']:
      key = get_name(vpc_response.get('Tags', []))
      if not key or key == EMPTY_NAME:  # skip VPC's that don't have a name assigned
        continue
  
      if key in result:
        util.log(f"Warning: Duplicate VPC group {key} in {response}")
        if DUPLICATE_CHECKING:
          assert False
      result[key] = ec2.Vpc(vpc_response['VpcId'])
  
    return result
docs: Returns dictionary of named VPCs {name: vpc}
  
    Assert fails if there's more than one VPC with same name.