ReadPersistentStorage

ReadPersistentStorage(key): String

Read value from global persistent key-value storage.

Table 1. Parameters
key	String record key to lookup.

Return

Value referenced by key or null if key not exist.

>>> ReadPersistentStorage("key1")
value1
>>> ReadPersistentStorage("key2")
null
>>> WritePersistentStorage("key2", "value2")
>>> ReadPersistentStorage("key2")
value2