https://api.drupal.org/api/drupal/8.9.x/search/getContextMapping
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https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Component%21Plugin%21ContextAwarePluginInterface.php/function/ContextAwarePluginInterface%3A%3AgetContextMapping/10
function ContextAwarePluginInterface::getContextMapping | Drupal API
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