# [Ride v4 and v3] Structures
⚠️ This is the documentation for the Standard library version 4 and 3. We recommend to use version 6. Go to version 6
All structures in Ride are built-in — you cannot create your own structures.
All structures have constructors.
# Examples
The code that creates an instance of the DataEntry
structure and reads its key and value.
{-# STDLIB_VERSION 3 #-}
{-# CONTENT_TYPE DAPP #-}
let data = DataEntry("Age", 33)
let key = data.key
let val = data.value