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# hash_keys(+Table, -Keys)

Retrieve the current hash table keys

Table
  A hash table
Keys
  a variable or list

## Description

Retrieve the hash table keys in the form of a list of Keys. This list is cached by the hash table and only recomputed when the keys have changed.

### Modes and Determinism

- hash_keys(+, -) is det

## See Also

hash_list / 2, hash_list / 3