def replace_multiple(string, replacements={}):
    """Replaces multiple strings inside a string.

    Args:
        string (str): String to replace.
        replacements (dict): Custom replacements for the string.

    Examples:
        >>> print(replace_multiple('Replace this ".',
        ...                         replacements={'"': 'double quote'}))
        Replace this double quote.

    Returns:
        str: Input string with multiple replaces performed.
    """
    for replacer, replacement in replacements.items():
        string = string.replace(replacer, replacement)
    return string