def to_pass(line):
    # The MIT License (MIT)
    #
    # Copyright (c) 2019 Michael Dawson-Haggerty
    #
    # Permission is hereby granted, free of charge, to any person
    # obtaining a copy of this software and associated documentation
    # files (the "Software"), to deal in the Software without restriction,
    # including without limitation the rights to use, copy, modify, merge,
    # publish, distribute, sublicense, and/or sell copies of the Software,
    # and to permit persons to whom the Software is furnished to do so,
    # subject to the following conditions:
    #
    # The above copyright notice and this permission notice shall be
    # included in all copies or substantial portions of the Software.
    #
    # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
    # OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    """
    Replace a line of code with a pass statement, with
    the correct number of leading spaces

    Arguments
    ----------
    line : str, line of code

    Returns
    ----------
    passed : str, line of code with same leading spaces
                  but code replaced with pass statement
    """
    # the number of leading spaces on the line
    spaces = len(line) - len(line.lstrip(' '))
    # replace statement with pass and correct leading spaces
    passed = (' ' * spaces) + 'pass'
    return passed