export const bytes = /^0x([A-Fa-f0-9]{1,})$/ ; export const bytesFixed = ( x ) : RegExp => new RegExp ( `^0x([A-Fa-f0-9]{${ x * 2 }})$` ) ; export const bytes32 = bytesFixed ( 32 ) ; export const ethereumAddress = bytesFixed ( 20 ) ; export const transactionHash = bytes32 ; export const privateKey = /^[A-Fa-f0-9]{1,64}$/ ;