taxonomy_manager-2.0.3/modules/taxonomy_manager_merge/taxonomy_manager_merge.routing.yml

taxonomy_manager_merge.admin_vocabulary.merge_terms:
  # cspell:ignore mergeterms
  path: '/admin/structure/taxonomy_manager/voc/{taxonomy_vocabulary}/mergeterms'
  defaults:
    _form: '\Drupal\taxonomy_manager_merge\Form\MergeTermsForm'
    _title: 'Merge terms'
  requirements:
    _entity_create_access: 'taxonomy_term:{taxonomy_vocabulary}'