Hello, can you please help with this question? Thank you

The Language is C++

Write the implementation of the class constructor of class GasTank of the previous problem. Assume member function implementation is outside the class specification. As a reminder here's a description of the members of class GasTank: A data member named amount of type double. A data member named capacity of type double. A constructor that accepts a parameter of type double. The value of the parameter is used to initialize the value of capacity. The constructor will also set amount to zero. A function named addGas that accepts a parameter of type double and returns no value. A function named useGas that accepts a parameter of type double and returns no value. A function named isEmpty that accepts no parameters and returns a boolean value. A function named isFull that accepts no parameters and returns a boolean value. A function named getGasLevel that accepts no parameters and returns double