API auth - Use parameter instead of Data Source Setting GUI

Thanks for your help. I went back to the API documentation and found this article detailing how to connect via powershell.

Running that powershell script with the Base64 key works (and i can get data from the API).

$credPair = "<your-freshservice-api-token>:.";
$encodedCredentials = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($credPair));
$headers = @{ Authorization = "Basic $encodedCredentials" };
$url = "https://<your-subdomain>.freshservice.com/api/v2/tickets/1?include=assets";
$Response = Invoke-WebRequest -Uri $url -Method Get -Headers $headers -UseBasicParsing;
$Response.Content;

The format for the headers line matches what you suggested and what i have in my query but i get the following error: