Function grin_chain::txhashset::utxo_view

pub fn utxo_view<'a, F, T>(trees: &'a TxHashSet, inner: F) -> Result<T, Error> where
    F: FnOnce(&UTXOView) -> Result<T, Error>, 

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