QueuedKeys: StorageDescriptor<[], [SS58String, {
    authority_discovery: FixedSizeBinary<32>;
    babe: FixedSizeBinary<32>;
    beefy: FixedSizeBinary<33>;
    grandpa: FixedSizeBinary<32>;
    para_assignment: FixedSizeBinary<32>;
    para_validator: FixedSizeBinary<32>;
}][], false, never>

The queued keys for the next session. When the next session begins, these keys will be used to determine the validator's session keys.