fn add_action<P: IsA<Action>>(&self, action: &P)
Adds an action to the
If the action map already contains an action with the same name
action then the old action is dropped from the action map.
The action map takes its own reference on
fn lookup_action(&self, action_name: &str) -> Option<Action>
Looks up the action with the name
If no such action exists, returns
the name of an action
fn remove_action(&self, action_name: &str)
Removes the named action from the action map.
If no action of this name is in the map then nothing happens.
the name of the action