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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 draw_point(self, x, y):
 """Draw a point on the current rendering target. Args: x (int):
 The x coordinate of the point. y (int):
 The y coordinate of the point. Raises: SDLError: If an error is encountered. """

        check_int_err(lib.SDL_RenderDrawPoint(self._ptr, x, y))