human
Solve the following python programming problem given the following code:
def __call__(self, environ, start_response) : 
    'Convenience call to return output and set status information

        Conforms to the WSGI interface for calling purposes only.

        Example usage:

        .. code-block:: python

            def wsgi_app(environ, start_response):
                response = WSGIResponse()
                response.write("Hello world")
                response.headers[\'Content-Type\'] = \'latin1\'
                return response(environ, start_response)

        ' 
    status_text = STATUS_CODE_TEXT [self.status_code] 
    status = ('%s %s' % (self.status_code, status_text)) 
    response_headers = self.headers.headeritems () 
    for c in self.cookies.values () : 
        response_headers.append (('Set-Cookie', c.output (header = ''))) 
start_response (status, response_headers) 
    is_file = isinstance (self.content, file) 
    if (('wsgi.file_wrapper' in environ) and is_file) : 
        return environ ['wsgi.file_wrapper'] (c.content) 
else : 
        if is_file : 
            return iter ((lambda : self.content.read ()), '') 
return self.get_content () 

    
    

    Fix the buggy line: return environ ['wsgi.file_wrapper'] (c.content)
assistant
#Here is Python code to fix the buggy line: return environ ['wsgi.

return environ ['wsgi.file_wrapper'] (self.content)