Function apply_vjp 

pub fn apply_vjp<'a, R>(
    runtime: &'a R,
    operator: &'a QuantumOperator,
    parameters: &'a ParameterValues,
    input: &'a R::Buffer,
) -> Result<(R::Buffer, ApplyPullback<'a, R>)>
where
    R: Runtime,
    Operator: RuntimeLinearOperator<R> + RuntimeAdjointLinearOperator<R>,

Evaluate a parameterized operator and prepare a one-shot reverse pullback.