Invalid input: expected object, received undefined

[Dreampip]

0.4.2
data: {"jsonrpc":"2.0","id":2,"result":{"content":[{"type":"text","text":"MCP error -32602: Input validation error: Invalid arguments for tool get_message_quota: [\n {\n "expected": "object",\n "code": "invalid_type",\n "path": [],\n "message": "Invalid input: expected object, received undefined"\n }\n]"}],"isError":true}}

request:
{
"method": "tools/call",
"params": {
"name": "get_message_quota",
"arguments": null,
"_meta": {
"progressToken": 2
}
},
"jsonrpc": "2.0",
"id": 2
}

When the "arguments" field is empty, this error will be reported.

{
"method": "tools/call",
"params": {
"name": "get_message_quota",
"arguments": {},
"_meta": {
"progressToken": 2
}
},
"jsonrpc": "2.0",
"id": 2
}
If the "arguments" is an empty JSON, that's fine... Could you please modify the validation logic? Actually, the functions "get_message_quota", "get_rich_menu_list", and "cancel_rich_menu_default" don't require any parameters, right? Whether it's an empty string or an empty JSON.