<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def add_value(self, value, index_point):

 """The function is addeing new value to provied index. If index does not exist"""

        if index_point not in self.index:
            self.values.append(value)
            self.index.append(index_point)