1 files changed, 13 insertions, 0 deletions

diff --git a/doc/documentation/tutorial-examples/021.c b/doc/documentation/tutorial-examples/021.c
new file mode 100644
index 000000000..688a31fe0
--- /dev/null
+++ b/doc/documentation/tutorial-examples/021.c
@@ -0,0 +1,13 @@
+static enum GNUNET_BLOCK_EvaluationResult
+block_plugin_SERVICE_evaluate (void *cls,
+                              enum GNUNET_BLOCK_Type type,
+                              struct GNUNET_BlockGroup *bg,
+                              const GNUNET_HashCode *query,
+                              const void *xquery,
+                              size_t xquery_size,
+                              const void *reply_block,
+                              size_t reply_block_size)
+{
+  // Verify type, block and bg
+}
+