[ NoAccessorMethod ]
[ Version ( since = "0.13.2" ) ]
public Variant storage_identifier_variant { owned get; }
Provider-specific information used to identify this account.
Use get_type to check that the type is what you expect. For instance, if you use a storage_provider with numeric identifiers for accounts, this variant might have type UINT32; if the storage provider has string-based identifiers, it should have type STRING.
This property cannot change once an Account has been created.
This is not guaranteed to have been retrieved until the TP_ACCOUNT_FEATURE_STORAGE feature has been prepared; until then,
the value is null.