interpreter: accept external programs and dependencies for summary

2 files changed, 9 insertions, 1 deletions

diff --git a/docs/markdown/Reference-manual.md b/docs/markdown/Reference-manual.md
index 802002b..cb8347a 100644
--- a/docs/markdown/Reference-manual.md
+++ b/docs/markdown/Reference-manual.md
@@ -1313,7 +1313,11 @@ The content is a series of key/value pairs grouped into sections. If the section
 keyword argument is omitted, those key/value pairs are implicitly grouped into a section
 with no title. key/value pairs can optionally be grouped into a dictionary,
 but keep in mind that dictionaries does not guarantee ordering. `key` must be string,
-`value` can only be integer, boolean, string, or a list of those.
+`value` can be:
+
+- an integer, boolean or string
+- *since 0.57.0* an external program or a dependency
+- a list of those.
 
 `summary()` can be called multiple times as long as the same section/key
 pair doesn't appear twice. All sections will be collected and printed at
diff --git a/docs/markdown/snippets/summary_prog_dep.md b/docs/markdown/snippets/summary_prog_dep.md
new file mode 100644
index 0000000..6f0262f
--- /dev/null
+++ b/docs/markdown/snippets/summary_prog_dep.md
@@ -0,0 +1,4 @@
+## `summary()` accepts external programs or dependencies
+
+External program objects and dependency objects can be passed to
+`summary()` as the value to be printed.