Insert the documents
Bunnet documents behave just like pydantic models (because they subclass pydantic.BaseModel).
Hence, a document can be created in a similar fashion to pydantic:
from typing import Optional
from pydantic import BaseModel
from bunnet import Document
from bunnet import Indexed
class Category(BaseModel):
    name: str
    description: str
class Product(Document):  # This is the model
    name: str
    description: Optional[str] = None
    price: Indexed(float)
    category: Category
    class Settings:
        name = "products"
chocolate = Category(name="Chocolate", description="A preparation of roasted and ground cacao seeds.")
tonybar = Product(name="Tony's", price=5.95, category=chocolate)
marsbar = Product(name="Mars", price=1, category=chocolate)
This however does not save the documents to the database yet.
Insert a single document
To insert a document into the database, you can call either insert() or create() on it (they are synonyms):
tonybar.insert()
marsbar.create()  # does exactly the same as insert()
save(), which behaves in the same manner for new documents, but will also update existing documents. 
See the section on updating of this tutorial for more details.
If you prefer, you can also call the insert_one class method: 
Product.insert_one(tonybar)
Inserting many documents
To reduce the number of database queries, 
similarly typed documents should be inserted together by calling the class method insert_many:
Product.insert_many([tonybar,marsbar])