human
Solve the following python programming problem given the following code:
def _send_name_claim(self, name, val, amount) : 
    def send_claim(address) : 
        cmd = known_commands ['claimname'] 
        func = getattr (self.cmd_runner, cmd.name) 
        return threads.deferToThread (func, address, amount, name, val) 
d = self.get_new_address () 
    d.addCallback (amount) 
    d.addCallback (self._broadcast_transaction) 
    return d 

    
    

    Fix the buggy line: d.addCallback (amount)
assistant
#Here is Python code to fix the buggy line: d.

d.addCallback (def send_claim()