Implement IAsyncInterceptor interface to intercept invocations, invocation.Proceed() re enter InterceptAsynchronous if we perform async operations with awai

[ng-le]

Implement Option 1 like this

public void InterceptAsynchronous<TResult>(IInvocation invocation)
{
    invocation.ReturnValue = InternalInterceptAsynchronous<TResult>(invocation);
}

private async Task<TResult> InternalInterceptAsynchronous<TResult>(IInvocation invocation)
{
    // Step 1. Do something prior to invocation.

    invocation.Proceed();
    var task = (Task<TResult>)invocation.ReturnValue;
    TResult result = await task;

    // Step 2. Do something after invocation.

    return result;
}

If in Step 1 and Step, if we use await with asynchronous operations, then when invocation.Proceed() it will re enter the InterceptAsynchronous