Gooey chooses single-select for option with choices and nargs='+' or '*'

[pobocks]

• OS: Windows 10/OSX
• Python Version: 3.9.7
• Gooey Version: 10.8.1
• Thorough description of problem
  • Expected Behavior
    When an optional argument has nargs="+" or "*" and choices=list_of_choices, this means that several choices can be selected. I would expect either a multi-select or a way of repeating the whole widget (a + button that adds another instance of the argument or something)
  • Actual Behavior
    Any arg with choices seems to be given a single-select widget, and the text box treats everything as a single argument, preventing even manually passing multiple arguments.
• A minimal code example -- preferably copy/pastable in the issue itself (less time figuring out how to run your code == more time debugging!)

from gooey import Gooey, GooeyParser

@Gooey
def main():
   p = GooeyParser()
   p.add_argument('-e', '--example-arg', nargs='+', choices=["value", "other_value"])
   p.parse_args()

main()