The function returns the user name that is a leader of the component with the name component_name in the current issue's project.
This function also admits a comma-separated list of components and returns a comma-separated list of user names. The output will contain repeated user names if the same user is a leader of more than one component.
componentLeader(text component_name)#Output: Text
Variant where you can additionally define a project_key.
componentLeader(text component_name, text project_key) #Output: Text