or how to use?

 ▲ [WARNING] Processing wrangler.toml configuration:

    - Unexpected fields found in triggers field: "kv_namespaces"

utils/
  - authentication.js
  - hashes.js
  - etc.
api/
  - index.js // Entrypoint of API Worker, imports from ../utils
  - wrangler.toml
  - other.js
images/
  - index.js // Entrypoint of Image Worker, imports from ../utils
  - wrangler.toml
  - storage.js

[[kv_namespaces]]
binding = "HISTORY"
id = "foo"

name = "api"
main = "src/api.js"
minify = true
workers_dev = true
route = { pattern = "https://example.com/api/*", zone_id = "foo" }

name = "images"
main = "src/images.js"
minify = true
workers_dev = true
route = { pattern = "https://example.com/images/*", zone_id = "foo" }