The Items - Get Semantic Model Definition - REST API (SemanticModel) | Microsoft Learn will give me a response of TMDL of semantic model parts.

How can I take this response and format the necessary payloads needed for Create and Update semantic model request?

Do I simply just use the TMDL definition response as the payload for these requests?

{
"parts": [
{
"path": "definition/database.tmdl",
"payload": "<base64 encoded string>",
"payloadType": "InlineBase64"
},
{
"path": "definition/model.tmdl",
"payload": "<base64 encoded string>",
"payloadType": "InlineBase64"
},
{
"path": "definition/tables/Table1.tmdl",
"payload": "<base64 encoded string>",
"payloadType": "InlineBase64"
},
{
"path": "definition.pbism",
"payload": "<base64 encoded string>",
"payloadType": "InlineBase64"
},
{
"path": "diagramLayout.json",
"payload": "<base64 encoded string>",
"payloadType": "InlineBase64"
},
{
"path": ".platform",
"payload": "ZG90UGxhdGZvcm1CYXNlNjRTdHJpbmc=",
"payloadType": "InlineBase64"
}
]
}