API Rest Upload an attachment within the POST methog (v3)

API Rest Upload an attachment within the POST methog (v3)

Hi there, I am trying to upload files in ServeDesk Plus OnPremise
Is there any way to do so through API
How does the json should look like?

I tried something like this, without results, in the documentation does not appear any reference about the POST, only GET
{
"resolution": {
"content": "Vexetur invidus vendibiliora ullus turpius esset reliquisti",
"content_url": "https://url.drive.com/1234abc"
}
}

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