key_changes_proof

tp_state_machine

Function key_changes_proof 

Source 
pub fn key_changes_proof<'a, H: Hasher, Number: BlockNumber>(
    config: ConfigurationRange<'a, Number>,
    storage: &dyn Storage<H, Number>,
    begin: Number,
    end: &AnchorBlockId<H::Out, Number>,
    max: Number,
    storage_key: Option<&PrefixedStorageKey>,
    key: &[u8],
) -> Result<Vec<Vec<u8>>, String>
where
    H::Out: Codec,
Expand description

Returns proof of changes of given key at given blocks range. max is the number of best known block.