interface.py

from typing import Dict, List, Tuple, Any

class InputParser:
    def parse(self, path_to_input: str) -> Tuple[str, Dict[str, List[Tuple[int, int, Any]]]]:
        """Parse input string into text and annotations.

        Annotations are returned as a dictionary with channel name as a key and list of tuples.
        Eg.: "She has a cat" -> ("She has a cat", {"entities": [(0, 3, "She"), (8, 11, "cat")]})

        Args:
            path_to_input (str): Path to file containing input.

        Returns:
            Tuple[str, Dict[str, List[Tuple[int, int, Any]]]]: Text and annotations.
        """
        pass