def METHOD_NAME(
    old_interpolation, new_interpolation, source, location
):
    modified = source
    line = modified[location.line - 1]
    new_line = (
        line[: location.column - 1]
        + new_interpolation
        + line[location.column + len(old_interpolation) - 1 :]
    )
    modified[location.line - 1] = new_line
    return modified