# [Ride v4] BooleanEntry
⚠️ This is the documentation for the Standard library version 4 and 3. We recommend to use version 5. Go to version 5
⚠️ The structure is added in Standard library version 4.
BooleanEntry is a structure that sets key and value of the account data storage boolean entry. Adding or changing an entry is performed only if the structure is included in the callable function result.
BooleanEntry(key: String, value: Boolean)
|1||key||String||Entry key. The maximum size is 400 bytes|