human
Here's a good function header given the following:
I wrote the below code

    def _set_nxm_headers_dec(self):
        self.nxm_headers = nxm_headers
        return self
    return _set_nxm_headers_dec

What's a good function header?
assistant
#Here's a good function header.

def _set_nxm_headers(nxm_headers):