backends.effective_capabilities()

Capabilities for a specific object.

Usage

Source

backends.effective_capabilities(
    backend,
    locator,
    policy,
)

Some backends (notably file) span tiers depending on the locator and policy: a local file is Observed while an S3 object in a versioned bucket is Addressable. Backends may implement effective_capabilities(locator, policy) to refine their class-level capabilities; otherwise the class value is used.

policy.pin == "record" removes PIN for any backend: the state is recorded without a native ref (cheaper, no retention hold) and forks come straight from the recorded state while the system still has it.