def get_indent_of_specifier(file, current_line, encapsulators):
    """
    Get indentation of the indent specifer itself.

    :param file:          A tuple of strings.
    :param current_line:  Line number of indent specifier (initial 1)
    :param encapsulators: A tuple with all the ranges of encapsulators
    :return:              Indentation of the specifier.
    """
    start = current_line
    _range = 0
    while _range < len(encapsulators) and encapsulators[_range
        ].end.line <= current_line:
        if current_line == encapsulators[_range].end.line:
            if encapsulators[_range].start.line < start:
                start = encapsulators[_range].start.line
        _range += 1
    return len(file[start - 1]) - len(file[start - 1].lstrip())
