X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;f=src%2Fhope_dictionary.erl;h=7930c1daaab115e84453ab6fb4e8e66f2b573425;hb=70cf8e86a06d8721fcc8b658bb2be1f7b401326f;hp=5494f396552a14a0bb18267aae91b418de131e9c;hpb=37c6e98b7b4b018972e0e6bdc557b266277fe353;p=hope.git

diff --git a/src/hope_dictionary.erl b/src/hope_dictionary.erl
index 5494f39..7930c1d 100644
--- a/src/hope_dictionary.erl
+++ b/src/hope_dictionary.erl
@@ -21,6 +21,9 @@
 -callback update(t(K, V), K, fun((hope_option:t(V)) -> V)) ->
     t(K, V).
 
+-callback pop(t(K, V), K) ->
+    {hope_option:t(V), t(K, V)}.
+
 -callback map(t(K, V), fun((K, V) -> V)) ->
     t(K, V).