I am trying to setup network via python sdk as shown below:

myhost_service.setup_networks( modified_network_attachments = [
                                    types.NetworkAttachment(
                                        host = myhost,
                                        host_nic = types.HostNic(name="eth0"),
                                        network = types.Network(name="Hello"),
                                        ip_address_assignments = [
                                            types.IpAddressAssignment(
                                                assignment_method = types.BootProtocol.STATIC,
                                                ip = types.Ip(
                                                    address="192.168.300.10",
                                                    netmask="255.255.255.0",
                                                    version=types.IpVersion.V4,
                                                ),
                                            )
                                        ],
                                    ),
                               ] )