Attribute Macro oasis_runtime_sdk::migration

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A helper attribute for #[sdk_derive(...)]. It doesn’t do anything on its own; it only marks functions that represent a module state migration.

The permitted forms are:

  • #[migration(init)]: Marks the initial (genesis) migration.
  • #[migration(from = v)]: Marks a migration from version v to v+1, where v is a non-negative integer.