Add indent of ``indent`` spaces to ``string.split("\n")[1:]``

    Useful for formatting in strings to already indented blocks

def _add_indent(string, indent):
    """Add indent of ``indent`` spaces to ``string.split("\n")[1:]``

    Useful for formatting in strings to already indented blocks
    """
    lines = string.split("\n")
    first, lines = lines[0], lines[1:]
    lines = ["{indent}{s}".format(indent=" " * indent, s=s)
             for s in lines]
    lines = [first] + lines
    return "\n".join(lines)