Function decode_object 

pub fn decode_object(
    buf: &[u8],
    index: usize,
    restore_non_finite: Option<bool>,
    verify_hash: Option<bool>,
) -> Result<DecodedMessage, JsValue>

Decode a single object by index.

@param buf - Raw .tgm message bytes @param index - Zero-based object index @param restore_non_finite - Restore canonical NaN / Inf from mask companion (default: true) @param verify_hash - Per-frame hash verification (default false). See decode for the full contract.