Shopify.Multipass.encrypt

You're seeing just the function encrypt, go back to Shopify.Multipass module for more information.
Link to this function

encrypt(message, encryption_key, block_size \\ 16)

Specs

encrypt(binary(), binary(), integer()) :: binary()

Encrypts a message using the given encryption key. This will pad the message according to the block size. Returns the encrypted message as cipher text.