The uCronos Method Action project is an official add-on for the Umbraco uCronos package released in 2018.
The add-on installs a new "Action" option that allows users to fire custom assembly methods via the uCronos / Hangfire scheduling features. Once installed, a fourth action is available in the uCronos Action tree. This new action called "Run Method" follows the same process to create actions that are assigned to Scheduled Jobs.