How can I obtain the hyperlink of a cell

I have a spreadsheet with a text value and hyperlink, im trying to get the hyperlink value
```ruby
p ws.[1, 1]
# => "   Text Value"

p ws.input_value(1, 1)
# => "   Text Value"
```

is there a way to obtain the hyperlink? lets say the hyperlink is `https://github.com` 