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
...
