get_actions returning unexpected result

Hello developers,
I am trying to use get_actions, but I am not able to apprehend the result.
I am passing
`{"pos":0, "offset": 10, "account_name": "accountname"}`
in my curl request on mainnet.
According to the docs, it should return me any array of [0,10), i.e. a total of 10 elements of [0,9].
But instead I am getting an array of 11 elements. Can't figure out the problem.

Thanks for any help! :)