Retrieves a Knowledge Base.

curl --request GET \
  --url https://api.totoy.ai/v1/knowledge-bases/{knowledge_base_id} \
  --header 'Authorization: Bearer <token>'

{
  "knowledge_base_id": "kb_feMfJbeqbAEj4u8K5HqmKpUbY",
  "name": "Totoy Customer Support Assistant",
  "instructions": "You are a customer support assistant for the customers of the company Totoy.",
  "project_id": "pj_avX7imfLaPcQnv5ckvGlOEBA9",
  "created_at": "2023-07-05T12:00:00Z",
  "updated_at": "2023-07-05T12:00:00Z"
}