Clear Instance Memoization

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Clear memoization data on object instance

namespace HH;

function clear_instance_memoization(
  object $obj,
): bool;

Parameters

• object $obj

Returns

• bool