static fun decodeBigInteger(source: Bytes!, bitLength: Int): BigInteger! (source)
Read a SSZ encoded two's-compliment big integer from a Bytes value.
source - Bytes!: the SSZ encoded bytes
bitLength - Int: the bit length of the integer to read (a multiple of 8)
InvalidSSZTypeException - if there are insufficient encoded bytes for the desired bit length
EndOfSSZException - if there are no more SSZ values to read
Return
BigInteger!: a string