import re
from typing import Final

DIGIT: Final[str]
ALPHA: Final[str]
HEXDIG: Final[str]
pct_encoded: Final[str]
unreserved: Final[str]
gen_delims: Final[str]
sub_delims: Final[str]
pchar: Final[str]
reserved: Final[str]
scheme: Final[str]
dec_octet: Final[str]
IPv4address: Final[str]
IPv6address: Final[str]
IPvFuture: Final[str]
IP_literal: Final[str]
reg_name: Final[str]
userinfo: Final[str]
host: Final[str]
port: Final[str]
authority: Final[str]
segment: Final[str]
segment_nz: Final[str]
segment_nz_nc: Final[str]
path_abempty: Final[str]
path_absolute: Final[str]
path_noscheme: Final[str]
path_rootless: Final[str]
path_empty: Final[str]
path: Final[str]
query: Final[str]
fragment: Final[str]
hier_part: Final[str]
relative_part: Final[str]
relative_ref: Final[str]
URI: Final[str]
URI_reference: Final[str]
absolute_URI: Final[str]

def is_uri(uri: str) -> re.Match[str] | None: ...
def is_uri_reference(uri: str) -> re.Match[str] | None: ...
def is_absolute_uri(uri: str) -> re.Match[str] | None: ...