human
Solve the following python programming problem given the following code:
def add_buffer(self, name, buffer, focus = False) : 
    '
        Insert a new buffer.
        ' 
    assert isinstance (buffer, Buffer) 
    self.buffers [name] = create_on_insert_handler 
    if focus : 
        self.buffers.focus (name) 
auto_suggest_function = self._create_auto_suggest_function (buffer) 
    completer_function = self._create_async_completer (buffer) 
    self._async_completers [name] = completer_function 
    def create_on_insert_handler() : 
        "
            Wrapper around the asynchronous completer and auto suggestion, that
            ensures that it's only called while typing if the
            `complete_while_typing` filter is enabled.
            " 
        def on_text_insert() : 
            if (buffer.completer and buffer.complete_while_typing ()) : 
                completer_function () 
if buffer.auto_suggest : 
                auto_suggest_function () 
return on_text_insert 
buffer.on_text_insert += create_on_insert_handler () 
    def buffer_changed() : 
        "
            When the text in a buffer changes.
            (A paste event is also a change, but not an insert. So we don't
            want to do autocompletions in this case, but we want to propagate
            the on_buffer_changed event.)
            " 
        self.application.on_buffer_changed.fire (self) 
buffer.on_text_changed += buffer_changed 

    
    

    Fix the buggy line: self.buffers [name] = create_on_insert_handler
assistant
#Here is Python code to fix the buggy line: self.

self.buffers [name] = buffer