need to access the value set on line 2 from line 6

dict.yml

    omeka_instances: # All attributes listed
      - omeka.dev: # <---  need to access this on line 6
        url: omeka.dev
        version: "{{ omeka_default_version }}"
        location: "http://omeka.org/files/omeka-{{ self.value.version }}.zip" #gitrepo or or URL of omeka core app
        directory: "/srv/www/{{ self.key.value }}" 
        instance_owner: "{{ omeka_default_instance_user }}"
        db_host: "{{ omeka_default_database_host }}"
        db_name: "{{ self.url }}"
        db_user: "{{ self.url }}"
        db_pass: AbC1@3
        db_prefix: "{{ omeka_default_db_prefix }}"
        db_charset: "{{ omeka_default_db_charset }}"
        db_port: "{{ omeka_default_db_port }}"
        is_production: "{{ omeka_default_is_production }}"
        addons_repo: "{{ omeka_default_addons_url }}"