encoders can be nil to accept the defaults, or set it to override some of the message handlers (like default).

ExportGenesis returns a GenesisState for a given context and keeper.

GetSignBytes returns the signBytes of the tx for a given signer This is a copy of cosmos-sdk function (cosmos-sdk/x/auth/types/StdTx.GetSignBytes() This is because the original `GetSignBytes` was probably meant to be used before the transaction gets processed, and the sequence that gets returned is an increment of what we need.

GetSignerSignature returns the signature of an account on a tx.

InitGenesis sets supply information for genesis.

NewKeeper creates a new contract Keeper instance If customEncoders is non-nil, we can use this to override some of the message handler, especially custom.

NewQuerier creates a new querier.

TestHandler returns a wasm handler for tests (to avoid circular imports).

CompileCost is how much SDK gas we charge *per byte* for compiling WASM code.

GasMultiplier is how many cosmwasm gas points = 1 sdk gas point SDK reference costs can be found here: https://github.com/enigmampc/cosmos-sdk/blob/02c6c9fafd58da88550ab4d7d494724a477c8a68/store/types/gas.go#L153-L164 A write at ~3000 gas and ~200us = 10 gas per us (microsecond) cpu/io Rough timing have 88k gas at 90us, which is equal to 1k sdk gas..

InstanceCost is how much SDK gas we charge each time we load a WASM instance.

MaxGas for a contract is 10 billion wasmer gas (enforced in rust to prevent overflow) The limit for v0.9.3 is defined here: https://github.com/CosmWasm/cosmwasm/blob/v0.9.3/packages/vm/src/backends/singlepass.rs#L15-L23 (this will be increased in future releases).

ContractInfoWithAddress adds the address (key) to the ContractInfo representation.

Keeper will have a reference to Wasmer with it's own data directory.

MultipliedGasMeter wraps the GasMeter from context and multiplies all reads by out defined multiplier.