Type Alias HrmpChannels

HrmpChannels: StorageDescriptor<
    [Key: { recipient: number; sender: number }],
    {
        max_capacity: number;
        max_message_size: number;
        max_total_size: number;
        mqc_head?: FixedSizeBinary<32>;
        msg_count: number;
        recipient_deposit: bigint;
        sender_deposit: bigint;
        total_size: number;
    },
    true,
    never,
>

HRMP channel data associated with each para. Invariant: