public static AltBN128PairingPrecompiledContract istanbul(final GasCalculator gasCalculator) {
    return new AltBN128PairingPrecompiledContract(gasCalculator, 34_000L, 45_000L);
  }
Create Istanbul AltBN128Pairing precompiled contract.

@param gasCalculator the gas calculator
@return the AltBN128Pairing precompiled contract
evm/src/main/java/org/hyperledger/besu/evm/precompile/AltBN128PairingPrecompiledContract.java