--- /dev/null
+from typing import Any
+
+class FormatChecker:
+ checkers: Any
+ def __init__(self, formats: Any | None = ...) -> None: ...
+ def checks(self, format, raises=...): ...
+ cls_checks: Any
+ def check(self, instance, format) -> None: ...
+ def conforms(self, instance, format): ...
+
+draft3_format_checker: Any
+draft4_format_checker: Any
+draft6_format_checker: Any
+draft7_format_checker: Any
+
+def is_email(instance): ...
+def is_ipv4(instance): ...
+def is_ipv6(instance): ...
+def is_host_name(instance): ...
+def is_idn_host_name(instance): ...
+def is_uri(instance): ...
+def is_uri_reference(instance): ...
+def is_iri(instance): ...
+def is_iri_reference(instance): ...
+def is_datetime(instance): ...
+def is_time(instance): ...
+def is_regex(instance): ...
+def is_date(instance): ...
+def is_draft3_time(instance): ...
+def is_css_color_code(instance): ...
+def is_css21_color(instance): ...
+def is_css3_color(instance): ...
+def is_json_pointer(instance): ...
+def is_relative_json_pointer(instance): ...
+def is_uri_template(instance, template_validator=...): ...