createHasher example

$userProvider,
            (new ChildDefinition('security.user.provider.missing'))->replaceArgument(0, $id)
        );

        return $userProvider;
    }

    private function createHashers(array $hashers, ContainerBuilder $container): void
    {
        $hasherMap = [];
        foreach ($hashers as $class => $hasher) {
            $hasherMap[$class] = $this->createHasher($hasher);
        }

        $container
            ->getDefinition('security.password_hasher_factory')
            ->setArguments([$hasherMap])
        ;
    }

    /** * @param array<string, mixed> $config * * @return Reference|array<string, mixed> */

$hasherKey = $class;
                    break;
                }
            }
        }

        if (null === $hasherKey) {
            throw new \RuntimeException(sprintf('No password hasher has been configured for account "%s".', \is_object($user) ? get_debug_type($user) : $user));
        }

        if (!$this->passwordHashers[$hasherKey] instanceof PasswordHasherInterface) {
            $this->passwordHashers[$hasherKey] = $this->createHasher($this->passwordHashers[$hasherKey]);
        }

        return $this->passwordHashers[$hasherKey];
    }

    /** * Creates the actual hasher instance. * * @throws \InvalidArgumentException */
    private function createHasher(array $config, bool $isExtra = false): PasswordHasherInterface
    {