State

    pub const State = union(enum) {
        /// The stream is available to be used for the first time, or reused.
        ready,
        received_head,
        /// The stream goes until the connection is closed.
        body_none,
        body_remaining_content_length: u64,
        body_remaining_chunk_len: RemainingChunkLen,
        /// The stream would be eligible for another HTTP request, however the
        /// client and server did not negotiate a persistent connection.
        closing,
    }