source: file: apiargs-common-option.yaml ref: readPreference
description: |
:manual:`Read preference </reference/read-preference>` to use for the operation. Defaults to the database's read preference.
---
source: file: apiargs-common-option.yaml ref: session
post: | .. versionadded:: 1.3
source:
file: apiargs-MongoDBDatabase-common-option.yaml
ref: typeMap ...