curl --request POST \
--url https://ai-nebula.com/prod-api/nebula/v4/api/text2imageSubmit \
--header 'Authorization: <authorization>' \
--header 'Content-Type: application/json' \
--data '
{
"req.prompt": "<string>",
"req.size": "<string>",
"req.value": "<string>",
"req.req_key": "<string>",
"req.return_url": true,
"req.width": 123,
"req.height": 123
}
'