Horde.DynamicSupervisor.which_children
You're seeing just the function
which_children, go back to Horde.DynamicSupervisor module for more information.
Works like DynamicSupervisor.which_children/1.
This function delegates to all supervisors in the cluster and returns the aggregated output. Where memory warnings apply to DynamicSupervisor.which_children, these count double for Horde.DynamicSupervisor.which_children.