Type Hints

[dinglind]

Is your feature request related to a problem? Please describe.
I think type hints are extremely valuable. I've noticed that there could be better type hints in your code. Would you be interested in this?

Describe the solution you'd like
I can give you an example. Instead of making a dictionary with the type and then popping the dictionary, you can modify the code to allow for type hints. You wouldn't have to pop anything either.

Before:
class FEModel3D():
def init(self):
self.Nodes = {str:Node3D} # A dictionary of the model's nodes
self.Nodes.pop(str)

After:
from typing import Dict

  class FEModel3D():
      def __init__(self):
          self.Nodes: Dict[str, Node3D] = {}          # A dictionary of the model's nodes

Describe alternatives you've considered
See above

Additional context
N/A