For example, list_of_ints.append(4) would turn list_of_ints into the list [1,2,3,4]. Appends are fast and efficient; it takes about the same amount of time to append one item to a list no matter ...

from string.templatelib import Template, Interpolation string.templatelib is a new module in the standard library for Python 3.14 that holds the types we need: Template for the type hint to the ...