return BSON regular expressions as BSONRegExp instances.
the serializer will check if keys are valid.
A user-provided comment to attach to this command
Enable utf8 validation when deserializing BSON documents. Defaults to true.
Specifies the verbosity mode for the explain output.
allow to specify if there what fields we wish to return as unserialized raw buffer.
An index name hint for the query.
serialize will not emit undefined fields (default:true)
The maximum amounts to count before aborting.
Number of milliseconds to wait before aborting the query.
when deserializing a Binary will return it as a node.js Buffer instance.
when deserializing a Long will fit it into a Number if it's smaller than 53 bits
when deserializing will promote BSON values to their Node.js closest equivalent types.
Return BSON filled buffers from operations
Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported)
The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest).
Should retry failed writes
Specify ClientSession for this command
The number of documents to skip.
Write Concern as an object
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