Moves the brush to a particular position.

    Arguments:
        x - a number between -250 and 250.
        y - a number between -180 and 180.

def move_to(x, y):
    """Moves the brush to a particular position.

    Arguments:
        x - a number between -250 and 250.
        y - a number between -180 and 180.
    """
    _make_cnc_request("coord/{0}/{1}".format(x, y))
    state['turtle'].goto(x, y)