Please solve the programming task below using a self-contained code snippet in a markdown code block.

There are n children standing in a line. Each child is assigned a rating value given in the integer array ratings.
You are giving candies to these children subjected to the following requirements:

Each child must have at least one candy.
Children with a higher rating get more candies than their neighbors.

Return the minimum number of candies you need to have to distribute the candies to the children.
 
Please complete the following python code precisely:
```python
class Solution:
    def candy(self, ratings: List[int]) -> int:
```