pub fn verify(
        &self,
        hasher: &dyn HashTree,
        trusted_root_hash: ValueHash,
    ) -> anyhow::Result<()> {
        if self.base.leaf_index == 0 {
            ensure!(
                self.base.value.is_zero(),
                "Invalid missing value specification: leaf index is zero, but value is non-default"
            );
        }
        let root_hash = hasher.fold_merkle_path(&self.merkle_path, self.base);
        ensure!(
            root_hash == trusted_root_hash,
            "Root hash mismatch: got {root_hash}, want {trusted_root_hash}"
        );
        Ok(())
    }
Verifies this proof.

# Errors

Returns an error <=> proof is invalid.
core/lib/merkle_tree/src/hasher/proofs.rs