How to use the astor.source_repr.split_lines function in astor

def test_split_lines_unicode_support(self):
        source = [u'copy', '\n']
        self.assertEqual(split_lines(source), source)

def long_long_line_ps(source):
        # A log pretty source printer for ASTOR because OSL parser does
        # not accept breaking statements into different lines
        from astor.source_repr import split_lines
        return ''.join(split_lines(source, maxline=200))

def better_pretty_source(sauce):
	# I specifically don't want to wrap lines basically ever.
	# the code editor interface is ~180 cols.
	t1 = astor.source_repr.split_lines(sauce, maxline=170)
	t2 = astor.source_repr.flatten(t1)
	ret = ''.join(t2)
	return ret

def long_line_ps(source):
        # A log pretty source printer for ASTOR because OSL parser does
        # not accept breaking statements into different lines
        from astor.source_repr import split_lines
        return ''.join(split_lines(source, maxline=120))