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

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility)

P   A   H   N
A P L S I I G
Y   I   R

And then read line by line: "PAHNAPLSIIGYIR"
Write the code that will take a string and make this conversion given a number of rows:

string convert(string s, int numRows);

 
Please complete the following python code precisely:
```python
class Solution:
    def convert(self, s: str, numRows: int) -> str:
```