AllCapabilities returns all capabilities available with the current wasmvm See https://github.com/CosmWasm/cosmwasm/blob/main/docs/CAPABILITIES-BUILT-IN.md This functionality is going to be moved upstream: https://github.com/CosmWasm/wasmvm/issues/425.

NewQueryPlugin returns a reference to a new QueryPlugin.

ErrCannotHandleMsg is returned by a ModuleMsgHandler when it cannot handle a message.

ErrCannotHandleQuery is returned by a ModuleQuerier when it cannot handle a query.

ModuleMsgHandler is an interface that all module messenger should implement.

ModuleQuerier is an interface that all module queriers should implement.