Sentence examples for thanks in from inspiring English sources

The phrase "thanks in" is not typically used or considered grammatically correct in written English.
It is possible that it was meant to be a shortened version of "thanks in advance" or "thanks for including", but even in those cases, it would be more appropriate to use the full phrase. If you want to express gratitude in written English, you can use phrases such as "thank you for", "I appreciate", or "many thanks for". For example: - Thank you for your help with the project. - I appreciate your kind words. - Many thanks for considering my request.