The type for content-addressable backend stores. The 'a phantom type carries information about the store mutability.

The type for keys.

The type for raw values.

mem t k is true iff k is present in t.

find t k is Some v if k is associated to v in t and None is k is not present in t.

Write the contents of a value to the store. It's the responsibility of the content-addressable store to generate a consistent key.

Same as add but allows to specify the key directly. The backend might choose to discared that key and/or can be corrupt if the key scheme is not consistent.

Clear the store. This operation is expected to be slow.

merge is the 3-way merge function for commit keys.

Key provides base functions for commit keys.

Val provides functions for commit values.

Node is the underlying node store.