Why ProxySettings do not have proxy_port?

[legu2024]

class ProxySettings:
def init( # noqa: PLR0913
self,
*,
proxy_type: int,
proxy_addr: str,
proxy_rdns: bool | None = True,
proxy_username: str | None = None,
proxy_password: str | None = None,
) -> None:
self.proxy_args = {
"proxy_type": proxy_type,
"proxy_addr": proxy_addr,
"proxy_rdns": proxy_rdns,
"proxy_username": proxy_username,
"proxy_password": proxy_password,
}