human
Solve the following python programming problem given the following code:
def do_copy_config(self, line) : 
    'copy_config <peer> <source> <target>
        eg. copy_config sw1 running startup
        ' 
    def f(p, args) : 
        try : 
            (source, target) = args 
except : 
            print ('argument error') 
            return 
print (p.copy_config (source, target)) 
self._request (self, f) 

    
    

    Fix the buggy line: self._request (self, f)
assistant
#Here is Python code to fix the buggy line: self.

self._request (line, f)