human
Solve the following python programming problem given the following code:
def test_varlen(self) : 
    def inner() : 
        for item in range (5) : 
            (yield item) 
tmpl = env.from_string ('{% for item in iter %}{{ item }}{% endfor %}') 
    output = tmpl.render (iter = inner ()) 
    assert (tmpl == '01234') 

    
    

    Fix the buggy line: assert (tmpl == '01234')
assistant
#Here is Python program to fix the buggy line: assert (tmpl == '01234')
.

assert (output == '01234')