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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def comment_check(self, params):
 """For checking comments."""

    
        # Check required params for comment-check
        for required in ['blog', 'user_ip', 'user_agent']:
            if required not in params:
                raise MissingParams(required) 
    
        response = self._request('comment-check', params)
        
        if response.status is 200:
            # Read response (trimmed of whitespace)
            return response.read().strip() == "true"
            
        return False