Run following command
bin/console data-definitions:list:imports
Run following command
bin/console data-definitions:list:exports
You can see the ID, the name and the Provider
Import Definitions can only run using the Pimcore CLI. To run your definition, use following command
bin/console data-definitions:import -d 1 -p "{\"file\":\"test.json\"}"
bin/console data-definitions:import -d name-of-definition -p "{\"file\":\"test.json\"}"
Export Definitions can only run (at the moment) using the Pimcore CLI. To run your definition, use following command
bin/console data-definitions:export -d 1 -p "{\"file\":\"test.json\"}"
bin/console data-definitions:export -d name-of-definition -p "{\"file\":\"test.json\"}"