Function grin_chain::txhashset::utxo_view

pub fn utxo_view<F, T>(
    handle: &PMMRHandle<BlockHeader>, 
    trees: &TxHashSet, 
    inner: F
) -> Result<T, Error> where
    F: FnOnce(&UTXOView, &Batch) -> Result<T, Error>, 

Readonly view on the UTXO set. Based on the current txhashset output_pmmr.