Own-borrow types that let you use both borrowed and owned values interchangeably.
Differs from Cow
mainly in that they borrow mutably, and doesn't convert the borrowed type
into the owned type on write.
Own-borrow types that let you use both borrowed and owned values interchangeably.
Differs from Cow
mainly in that they borrow mutably, and doesn't convert the borrowed type
into the owned type on write.