#!/usr/bin/env python3

def get_key(filename: str):
    """ 
    Provide a path to a valid file, this will return the contents.
        Parameters:
                filename (str): path to file
        Returns:
                schools (dict): Collated response from API
    """
    try:
        with open(filename, 'r') as f:
            # It's assumed our file contains a single line,
            # with our API key
            return f.read().strip()
    except FileNotFoundError:
        print("'%s' file not found" % filename)