1 files changed, 7 insertions, 0 deletions
diff --git a/core/src/main/java/de/danoeh/antennapod/core/util/Function.java b/core/src/main/java/de/danoeh/antennapod/core/util/Function.java
new file mode 100644
index 000000000..c4f4ad68a
--- /dev/null
+++ b/core/src/main/java/de/danoeh/antennapod/core/util/Function.java
@@ -0,0 +1,7 @@
+package de.danoeh.antennapod.core.util;
+
+import io.reactivex.annotations.NonNull;
+
+public interface Function<T, R> {
+    R apply(@NonNull T t);
+}