FromEther converts values in Ether to wei.

FromGwei converts values in Gwei to wei.

HexToInt converts string format of a series of hex value to byte slice.

HexToInt converts string format of a hex value to int64.

PackArgument packs a single argument into a string.

ToEther converts values in wei to ether.

ToGwei converts values in wei to Gwei.

Trim0xPrefix removes '0x' prefix if any.

UnpackArgument converts string format of a value into the Go type corresponding to given argument type.