Automatically fill out documentation based on config

[MrWiggims1]

For example:

/// <summary>
/// Gets the number in the middle of 2 numbers
/// </summary>
/// <param name="a">First number</param>
/// <param name="b">Second number</param>
/// <returns>The middle number as an Int</returns>
int GetMiddle(int a, int b)
{
   return answer;
}

/// <summary>
/// 
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
double GetMiddle(double a, double b)
{
   return answer;
}

Could we have some sort of option to add something like this (this is just pseudo json of course):

"AutomaticDocumentation":
   "a", "First number",
   "b", "Second number",
   "GetMiddle":
      "summary": "Gets the number in the middle of 2 numbers",
      "returns": "The middle number as an Int"

So that my second method is already filled out automatically. I'm writing a math library and there are lots of variants of the same equations taking in all sorts of parameters over and over, it would be much easier with something like this.

I also found this https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/xmldoc/recommended-tags#reuse-documentation-text