public long decrementRemainingGas(final long amount) {
    this.gasRemaining -= amount;
    return this.gasRemaining;
  }
Decrement the amount of remaining gas.

@param amount The amount of gas to deduct
@return the amount of gas available, after deductions.
evm/src/main/java/org/hyperledger/besu/evm/frame/MessageFrame.java