ipset add error

[JamCh01]

I try to add a record of type hash:net,port for ICMP, here is my shell code

ipset add aclblacklist 219.144.207.0/24,icmp:echo-request

aclblacklist is

Name: aclblacklist
Type: hash:net,port
Revision: 7
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 832
References: 1
Number of entries: 2
Members:
219.144.207.0/24,icmp:echo-request
117.22.251.0/24,icmp:echo-request

It works well. But I try to use pyroute2.ipset, it gives me a strange answer. Here is my python code

from pyroute2.ipset import IPSet

ipset = IPSet()

ipset.add(
    name="aclblacklist",
    entry=("1.1.1.0/24", "icmp:echo-request"),
    etype="net,port",
)

with error

Traceback (most recent call last):
  File "/root/test.py", line 5, in <module>
    ipset.add(
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/ipset.py", line 502, in add
    return self._add_delete_test(
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/ipset.py", line 441, in _add_delete_test
    return self.request(
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/ipset.py", line 159, in request
    self.nlm_request(
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/nlsocket.py", line 822, in nlm_request
    return tuple(self._genlm_request(*argv, **kwarg))
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/nlsocket.py", line 1124, in nlm_request
    self.put(msg, msg_type, msg_flags, msg_seq=msg_seq)
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/nlsocket.py", line 389, in put
    self.sendto_gate(msg, addr)
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/nlsocket.py", line 1056, in sendto_gate
    msg.encode()
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1245, in encode
    offset = self.encode_nlas(offset)
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1566, in encode_nlas
    nla_instance.encode()
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1245, in encode
    offset = self.encode_nlas(offset)
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1566, in encode_nlas
    nla_instance.encode()
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1242, in encode
    offset, diff = self.ft_encode(offset)
  File "/usr/local/lib/python3.9/dist-packages/pyroute2/netlink/__init__.py", line 1732, in ft_encode
    struct.pack_into(efmt, self.data, offset, value)
struct.error: required argument is not an integer

Here is fixed

from pyroute2.ipset import IPSet, PortRange

ipset = IPSet()

ipset.add(
    name="aclblacklist",
    entry=("1.1.1.0/24", PortRange(begin=1, end=1, protocol=1)),
    etype="net,port",
)

Name: aclblacklist
Type: hash:net,port
Revision: 7
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 896
References: 1
Number of entries: 3
Members:
1.1.1.0/24,icmp:0/1
219.144.207.0/24,icmp:echo-request
117.22.251.0/24,icmp:echo-request