Type inheritance for functions based on args

[10bas10]

Made a new function to support type inheritance for specific functions that should only inherit from specific attributes. The function allows one of the following parameters:

• A string and that will refer to an entry within the args dictionary, the array of expressions or its single expression will be included in the inheritance of datatypes;
• An expression;
• An list of expressions.

From the list of expressions applicable, the datatype will be inherited.

[georgesittas]

Just a few comments. We should add some tests that cover other argument types too; for instance we should check the case where we have a list of expressions or a single expression, instead of just strings.

This seems like a reasonable addition, thanks for the PR!

[10bas10]

Just a few comments. We should add some tests that cover other argument types too; for instance we should check the case where we have a list of expressions or a single expression, instead of just strings.

I could also clean that part out as I dont see a usecase yet for it. What do you think?

[georgesittas]

I could also clean that part out as I dont see a usecase yet for it. What do you think?

Yes, that could work too. I initially thought that strings would probably suffice for this function.