'Connect event with string *s* to *func*.
Parameters
s : String
Name of the event
The following events are recognized
- \'tool_message_event\'
- \'tool_removed_event\'
- \'tool_added_event\'
For every tool added a new event is created
- \'tool_trigger_TOOLNAME`
Where TOOLNAME is the id of the tool.
func : function
Function to be called with signature
def func(event)'

def toolmanager_connect(self, s, func):

    return self._callbacks.connect(s, func)
