public static function clear($class = null, $method = null) {
		if ($class === null && $method === null) {
			static::$_filters = static::$_chains = [];
			return;
		}

		if (is_string($class)) {
			$regex  = '^<' . str_replace('\\', '\\\\', ltrim($class, '\\')) . '.*>';
		} else {
			$regex  = '^<.*#' . spl_object_hash($class) . '>';
		}
		if ($method) {
			$regex .= "::{$method}$";
		}
		foreach (preg_grep("/{$regex}/", array_keys(static::$_filters)) as $id) {
			unset(static::$_filters[$id]);
		}
		foreach (preg_grep("/{$regex}/", array_keys(static::$_chains)) as $id) {
			unset(static::$_chains[$id]);
		}
	}
public static function clear($class = null, $method = null) {
		if ($class === null && $method === null) {
			static::$_filters = static::$_chains = [];
			return;
		}

		if (is_string($class)) {
			$regex  = '^<' . str_replace('\\', '\\\\', ltrim($class, '\\')) . '.*>';
		} else {
			$regex  = '^<.*#' . spl_object_hash($class) . '>';
		}
		if ($method) {
			$regex .= "::{$method}$";
		}
		foreach (preg_grep("/{$regex}/", array_keys(static::$_filters)) as $id) {
			unset(static::$_filters[$id]);
		}
		foreach (preg_grep("/{$regex}/", array_keys(static::$_chains)) as $id) {
			unset(static::$_chains[$id]);
		}
	}
public static function clear ( $ class = null , $ method = null ) { if ( $ class === null && $ method === null ) { static :: $ _filters = static :: $ _chains = [ ] ; return ; } if ( is_string ( $ class ) ) { $ regex = '^<' . str_replace ( '\\' , '\\\\' , ltrim ( $ class , '\\' ) ) . '.*>' ; } else { $ regex = '^<.*#' . spl_object_hash ( $ class ) . '>' ; } if ( $ method ) { $ regex .= "::{$method}$" ; } foreach ( preg_grep ( "/{$regex}/" , array_keys ( static :: $ _filters ) ) as $ id ) { unset ( static :: $ _filters [ $ id ] ) ; } foreach ( preg_grep ( "/{$regex}/" , array_keys ( static :: $ _chains ) ) as $ id ) { unset ( static :: $ _chains [ $ id ] ) ; } }
Clears filters optionally constrained by class or class and method combination.

To clear filters for all methods of static class:
```
Filters::clear('Foo');
```

To clear instance and class filters for all methods of concrete class,
or to clear just the instance filters for all methods:
```
Filters::clear('Bar');
Filters::clear($instance);
```

This method involves some overhead. This is neglectable as it isn't commonly
called in hot code paths.

@param string|object $class Fully namespaced class name or an instance of a class.
@param string $method The method name i.e. `'bar'`.
@return void
Clears filters optionally constrained by class or class and method combination .