has_header no such method

[spath]

I coppied ListCommands and made a new class called Queues

pystrix/ami/core.py

like this...
class Queues(_Request):
"""
The "Queues" request returns configuration and statistical information about the existing queues
"""
def init(self):
_Request.init(self, 'Queues')

When I sent this message The response from asterisk causes this code to execute.
if self.has_header(KEY_ACTIONID)

there is no method has_header