frame-support Add translate_next (#14043)
* Frame Add translate_next This works similarly to to `translate` but only translate a single entry. This function will be useful in the context of multi-block migration. * Add test * add None return case * fixes * PR comment use `?`
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- substrate/frame/support/src/storage/generator/map.rs 39 additions, 25 deletionssubstrate/frame/support/src/storage/generator/map.rs
- substrate/frame/support/src/storage/mod.rs 9 additions, 0 deletionssubstrate/frame/support/src/storage/mod.rs
- substrate/frame/support/src/storage/types/map.rs 10 additions, 1 deletionsubstrate/frame/support/src/storage/types/map.rs
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