wp-includes/php-ai-client/src/Providers/Http/Enums/HttpMethodEnum.php:95Checks if this method is idempotent.
bool public function isIdempotent(): bool { return in_array($this->value, [self::GET, self::HEAD, self::OPTIONS, self::TRACE, self::PUT, self::DELETE], \true); }Introduced in 0.1.0. Unchanged from 7.0.4 through 7.1.0.
Signature, return type and hooks compared across 2 parsed releases.
src/wp-includes/php-ai-client/src/Providers/Http/Enums/HttpMethodEnum.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.