--- /dev/null
+from typing import Any
+
+DIGIT: str
+ALPHA: str
+HEXDIG: str
+pct_encoded: Any
+unreserved: Any
+gen_delims: str
+sub_delims: str
+pchar: Any
+reserved: Any
+scheme: Any
+dec_octet: Any
+IPv4address: Any
+IPv6address: str
+IPvFuture: Any
+IP_literal: Any
+reg_name: Any
+userinfo: Any
+host: Any
+port: Any
+authority: Any
+segment: Any
+segment_nz: Any
+segment_nz_nc: Any
+path_abempty: Any
+path_absolute: Any
+path_noscheme: Any
+path_rootless: Any
+path_empty: str
+path: Any
+query: Any
+fragment: Any
+hier_part: Any
+relative_part: Any
+relative_ref: Any
+URI: Any
+URI_reference: Any
+absolute_URI: Any
+
+def is_uri(uri): ...
+def is_uri_reference(uri): ...
+def is_absolute_uri(uri): ...