1# EVM contract migration pallet23This pallet is only callable by root, it has functionality to migrate contract4from other ethereum chain to pallet-evm56Contract data includes contract code, and contract storage,7where contract storage is a mapping from evm word to evm word (evm word = 32 byte)89To import contract data into pallet-evm admin should call this pallet multiple times:101. Start migration via `begin`112. Insert all contract data using single or12 multiple (If data can't be fit into single extrinsic) calls13 to `set_data`143. Finish migration using `finish`, providing contract code1516During migration no one can insert code at address of this contract,17as [`pallet::OnMethodCall`] prevents this, and no one can call this contract,18as code is only supplied at final stage of contract deployment