does aws sqs takes in consideration message attributes / system attributes in consideration when content based deduplication is enabled?

Question

I am working on a project using aws sqs, i want to use content based deduplication for fifo queues but i couldnt find in the documentation if sqs considers message attributes and message system attributes as "Content" or no.

Answer 1

after a search, and trying duplicating messages with different message system attributes, i found that indeed :

sqs does consider message attributes and message system attributes as "Content"