def load_verify_locations(
        self,
        cafile: Optional[str] = None,
        capath: Optional[str] = None,
        cadata: Optional[bytes] = None,
    ) -> None:
        """
        Load a set of "certification authority" (CA) certificates used to
        validate other peers' certificates.
        """
        self.cafile = cafile
        self.capath = capath
        self.cadata = cadata

        Load a set of "certification authority" (CA) certificates used to
        validate other peers' certificates.
        
src/aioquic/quic/configuration.py