new: List ips under a specific VPC - #391

import os

from linode_api4 import LinodeClient
from linode_api4.objects import ConfigInterface

def main():
    client = LinodeClient(os.getenv("LINODE_TOKEN"))

    vpc = client.vpcs.create(
        "pythonsdk-test-vpc-123",
        "us-mia",
        description="test description",
    )
    
    subnet = vpc.subnet_create("test-subnet", ipv4="10.0.0.0/24")
    
    linode1, _ = client.linode.instance_create(
        "g6-nanode-1",
        "us-mia",
        label="test-vpc-instance-1",
        image="linode/alpine3.19",
        interfaces=[
            ConfigInterface(
                purpose="vpc",
                subnet_id=subnet.id,
            )
        ]
    )
    
    linode2, _ = client.linode.instance_create(
        "g6-nanode-1",
        "us-mia",
        label="test-vpc-instance-2",
        image="linode/alpine3.19",
        interfaces=[
            ConfigInterface(
                purpose="vpc",
                subnet_id=subnet.id,
            )
        ]
    )

    vpc_ips = vpc.ips

    assert len(vpc_ips) > 0
    assert vpc_ips[0].vpc_id == vpc.id
    assert vpc_ips[0].subnet_id == subnet.id
    
    print(*vpc_ips)
    
    linode1.delete()
    linode2.delete()
    subnet.delete()
    vpc.delete()


if __name__ == "__main__":
    main()