How to use the sshpubkeys.exceptions.TooLongKeyError function in sshpubkeys

# 512 bit ed25519 keys are not yet supported by OpenSSH
    [
        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAQIMcGCUjHYKD/rfvSGiNSB1ij8hScTB7e1bo3XK2oaGGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",
        InvalidKeyLengthError, "512bit_ed25519", ["loose", "strict"]
    ],
    [
        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAQIBBAIDAICBAgEABACAggGCgAABAwOEAwGBAgEEg4SBAAKBBIGEAgSEgAIEgoMCgICAgYMCgYQDgoKBgIIDgwCA=",
        InvalidKeyLengthError, "512bit_ed25519", ["loose", "strict"]
    ],
    [
        'command="dump /home,no-pty,no-port-forwarding ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABADR9kolU4uiD26LMrbakQlNf4QWB2xrdY3nASf6CJdQYzTMjNmbt6sJ4A4pGnCupFrzL04EYDvbVmT4GEZm6CU4BsY61yosnpGSqqcVCdw5xW1k4bCSDPW75WHLCVmYyROhZ+yyo8uAcIy5UIyBZXF/PO7taJrrIi5RwdqIPwtCrJ3dJkcFWa3qZWJykLAFQD5A/lta/egS/u/nyCap2e16WGnvSluz9CyYtGFNS9axzOwHxLFEv2ocOsJjYgzV+Jfpiao94A4VzLKbUDHlfV57KS0tJaT8FKKsg34vN3bsD0zUftLUPpUFgJfMwje0C2rCJkCzwgya2vxLqj2fg0Q0= ojarva@ojar-laptop.local',
        MalformedDataError, "missing_quote", ["loose", "strict"]
    ],
    [
        'ssh-dss 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',
        TooLongKeyError, "dsa_2048", ["strict"]
    ],
    [
        'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAYQbdtLTII+vP98NSDlK2LXxVARELRYO0NODFYQ0imYxsmBMB7BrfljFppLJyjU6cziOT6YFj6rVd8MmCogdCR32u63EV11uT6RCFfJMQJtIi+B1JJipTxLzURsiUOOgAHJc= ojarva@ojar-laptop.local',
        TooShortKeyError, "rsa_771", ["strict"]
    ],

self.rsa = RSAPublicNumbers(unpacked_e, unpacked_n).public_key(default_backend())
        self.bits = self.rsa.key_size

        if self.strict_mode:
            min_length = self.RSA_MIN_LENGTH_STRICT
            max_length = self.RSA_MAX_LENGTH_STRICT
        else:
            min_length = self.RSA_MIN_LENGTH_LOOSE
            max_length = self.RSA_MAX_LENGTH_LOOSE
        if self.bits < min_length:
            raise TooShortKeyError(
                "%s key data can not be shorter than %s bits (was %s)" % (self.key_type, min_length, self.bits)
            )
        if self.bits > max_length:
            raise TooLongKeyError(
                "%s key data can not be longer than %s bits (was %s)" % (self.key_type, max_length, self.bits)
            )
        return current_position

data_fields[item] = self._parse_long(value)

        q_bits = self._bits_in_number(data_fields["q"])
        p_bits = self._bits_in_number(data_fields["p"])
        if q_bits != self.DSA_N_LENGTH:
            raise InvalidKeyError("Incorrect DSA key parameters: bits(p)=%s, q=%s" % (self.bits, q_bits))
        if self.strict_mode:
            min_length = self.DSA_MIN_LENGTH_STRICT
            max_length = self.DSA_MAX_LENGTH_STRICT
        else:
            min_length = self.DSA_MIN_LENGTH_LOOSE
            max_length = self.DSA_MAX_LENGTH_LOOSE
        if p_bits < min_length:
            raise TooShortKeyError("%s key can not be shorter than %s bits (was %s)" % (self.key_type, min_length, p_bits))
        if p_bits > max_length:
            raise TooLongKeyError(
                "%s key data can not be longer than %s bits (was %s)" % (self.key_type, max_length, p_bits)
            )

        dsa_parameters = DSAParameterNumbers(data_fields["p"], data_fields["q"], data_fields["g"])
        self.dsa = DSAPublicNumbers(data_fields["y"], dsa_parameters).public_key(default_backend())
        self.bits = self.dsa.key_size

        return current_position