BSONNone

BSONNone is a data type used in BSON, which stands for Binary JSON. BSON is a format that allows data to be stored in a binary form and is often used by databases like MongoDB. BSONNone represents a null value, indicating that there is no data or that a value is intentionally absent. It functions similarly to "null" in other programming languages, signaling that a particular field is empty or unknown, without holding any actual data. This is important for data integrity and accurate representation in databases.