Run the given code on an isolated and unpersisted state Cannot be used to create new contracts.

Run a contract's code on an isolated and unpersisted state Cannot be used to create new contracts.

Wraps a cache of what is variously known as the 'check cache' and 'mempool'.

Since we have an initial save of our state forest we start one version ahead of the block height, but from then on we should track height by this offset.

Accounts pairs an underlying state.Reader with a KeyClient to provide a signing variant of an account it also maintains a lock over addresses to provide a linearisation of signing events using SequentialSigningAccount.

Transactor is responsible for helping to formulate, sign, and broadcast transactions to tendermint The BroadcastTx* methods are able to work against the mempool Accounts (pending) state rather than the committed (final) Accounts state and can assign a sequence number based on all of the txs seen since the last block - provided these transactions are successfully committed (via DeliverTx) then subsequent transactions will have valid sequence numbers.

Executes transactions.