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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _init_server_authentication(self, ssl_verify: OpenSslVerifyEnum, ssl_verify_locations: Optional[str]) -> None: """Setup the certificate validation logic for authenticating the server. """

        self._ssl_ctx.set_verify(ssl_verify.value)
        if ssl_verify_locations:
            # Ensure the file exists
            with open(ssl_verify_locations):
                pass
            self._ssl_ctx.load_verify_locations(ssl_verify_locations)