def __add__(self, given_data):
summed_sketch = Sketch(width=self.width, max_value=self.max_value, seed=self.seed)<EOL>summed_sketch.copy(self)<EOL>return summed_sketch.__iadd__(given_data)<EOL>
Get merged sketch
        summed_sketch = sketch + sketch
        Param:
            <Sketch> | <dict> given_data
        Return:
            <Sketch> summed_sketch