curl --request POST \
  --url https://api.example.com/block_schemas/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "block_type_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "fields": {},
  "capabilities": [
    "<string>"
  ],
  "version": "non-versioned"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created": "2023-11-07T05:31:56Z",
  "updated": "2023-11-07T05:31:56Z",
  "checksum": "<string>",
  "block_type_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "fields": {},
  "block_type": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "created": "2023-11-07T05:31:56Z",
    "updated": "2023-11-07T05:31:56Z",
    "name": "<string>",
    "slug": "<string>",
    "logo_url": "<string>",
    "documentation_url": "<string>",
    "description": "<string>",
    "code_example": "<string>",
    "is_protected": false
  },
  "capabilities": [
    "<string>"
  ],
  "version": "non-versioned"
}