Can you name the main features of using the dictionary annotation?

The dictionary annotation in Python is used to specify the types of keys and values in a dictionary. Main features:

• Allows static analyzers and IDEs to check type correctness.
• Used with typing.Dict or with dictionary syntax in newer Python versions (e.g., dict[str, int]).
• Does not affect program execution, serving only for documentation and type checking.

Example:

from typing import Dict

def count_words(text: str) -> Dict[str, int]:
    words = text.split()
    counts: Dict[str, int] = {}
    for word in words:
        counts[word] = counts.get(word, 0) + 1
    return counts

Here, it indicates that the function returns a dictionary with keys of type str and values of type int.