Add the Authors migration

web/modules/custom/geo_upgrade/migrations/upgrade_d7_node_story_author.yml

@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies: {  }
+id: upgrade_d7_node_story_author
+class: Drupal\migrate\Plugin\Migration
+field_plugin_method: alterFieldInstanceMigration
+cck_plugin_method: null
+migration_tags:
+  - 'Drupal 7'
+  - Content
+migration_group: migrate_drupal_7_geo
+label: 'Authors (Story authors)'
+source:
+  constants:
+    user_id: 1
+    author_status: 1
+  plugin: geod7_author
+process:
+  title: field_author_value
+  uid: constants/user_id
+  status: constants/author_status
+destination:
+  plugin: 'entity:node'
+  default_bundle: people
+migration_dependencies:
+  required: {  }
+  optional: {  }