The help section plugin manager. Type:

hook_help($route_name, \Drupal\Core\Routing\RouteMatchInterface $route_match) Provide online user help.

Manages help page section plugins. Hierarchy class \Drupal\Component\Plugin\PluginManagerBase

help_theme($existing, $type, $theme, $path) Implements

Controller routines for help routes. Hierarchy class \Drupal\Core\Controller\

The description of the help page section. Type:

hook_help_section_info_alter(&$info) Perform alterations on help page section plugin definitions.

help_block_view_help_block_alter(array &$build, BlockPluginInterface $block) Implements

public HelpController::helpPage($name)

public HelpSectionManager::__construct(\Traversable $namespaces