Issue #23935: Argument Clinic's understanding of format units
accepting bytes, bytearrays, and buffers is now consistent with
both the documentation and the implementation.
diff --git a/Modules/_dbmmodule.c b/Modules/_dbmmodule.c
index bcdea1d..b815e97 100644
--- a/Modules/_dbmmodule.c
+++ b/Modules/_dbmmodule.c
@@ -272,7 +272,7 @@
 
     self: dbmobject
 
-    key: str(length=True)
+    key: str(types={'str', 'robuffer'}, length=True)
     default: object = None
     /
 
@@ -282,7 +282,7 @@
 static PyObject *
 dbm_dbm_get_impl(dbmobject *dp, const char *key, Py_ssize_clean_t key_length,
                  PyObject *default_value)
-/*[clinic end generated code: output=4f5c0e523eaf1251 input=aecf5efd2f2b1a3b]*/
+/*[clinic end generated code: output=4f5c0e523eaf1251 input=f81478bc211895ef]*/
 {
     datum dbm_key, val;