pub fn confirmed_last_blockhash(&self) -> Hash {
        const NUM_BLOCKHASH_CONFIRMATIONS: usize = 3;

        let parents = self.parents();
        if parents.is_empty() {
            self.last_blockhash()
        } else {
            let index = cmp::min(NUM_BLOCKHASH_CONFIRMATIONS, parents.len() - 1);
            parents[index].last_blockhash()
        }
    }
/// Return a confirmed blockhash with NUM_BLOCKHASH_CONFIRMATIONS
Return a confirmed blockhash with NUM_BLOCKHASH_CONFIRMATIONS
Return a confirmed blockhash with NUM_BLOCKHASH_CONFIRMATIONS
pub fn confirmed_last_blockhash(&self) -> Hash {
        const NUM_BLOCKHASH_CONFIRMATIONS: usize = 3;
        let parents = self.parents();
        if parents.is_empty() {
            self.last_blockhash()
        } else {
            let index = cmp::min(NUM_BLOCKHASH_CONFIRMATIONS, parents.len() - 1);
            parents[index].last_blockhash()
        }
    }
pub fn confirmed_last_blockhash ( & self ) -> Hash { const NUM_BLOCKHASH_CONFIRMATIONS : usize = 3 ; let parents = self . parents ( ) ; if parents . is_empty ( ) { self . last_blockhash ( ) } else { let index = cmp :: min ( NUM_BLOCKHASH_CONFIRMATIONS , parents . len ( ) - 1 ) ; parents [ index ] . last_blockhash ( ) } }
Return a confirmed blockhash with NUM_BLOCKHASH_CONFIRMATIONS
Return a confirmed blockhash with NUM_BLOCKHASH_CONFIRMATIONS
&self
&self