• azure-cosmos:
• 4.0.0:
• Windows 10 Enterprise 1909:
• Python 3.6.8:

Describe the bug
When attempting to upsert an item where 'id' field is not set to string, you get AttributeError.

While throwing error is correct in keeping with CosmosDB requirements that ID field be string, I believe TypeError in following with Python standards is more appropriate error.

https://docs.python.org/3/library/exceptions.html
Passing arguments of the wrong type (e.g. passing a list when an int is expected) should result in a TypeError

To Reproduce
Steps to reproduce the behavior:
from azure.cosmos import exceptions, CosmosClient, PartitionKey
import random
#CHANGEME
endpoint = "changeme"
key = "changeme"

client = CosmosClient(endpoint, key)

database_name = 'AzureSampleFamilyDatabase'
database = client.create_database_if_not_exists(id=database_name)

container_name = 'FamilyContainer'
container = database.create_container_if_not_exists(
id=container_name,
partition_key=PartitionKey(path="/lastName"),
offer_throughput=400
)
item = {"id": (random.randint(1,100000))} #this should be string but isn't
item['lastname'] = "Jones"
container.upsert_item(item) #Attribute Error raised

AttributeError: 'int' object has no attribute 'find'

Expected behavior
Since id is not string, I would expect ValueError in keeping with Python standards