tests: ensure samples pass if no samples exist (via synth) (#94)

Source-Author: Daniel Sanche <d.sanche14@gmail.com>
Source-Date: Wed Oct 14 08:00:06 2020 -0700
Source-Repo: googleapis/synthtool
Source-Sha: 477764cc4ee6db346d3febef2bb1ea0abf27de52
Source-Link: https://github.com/googleapis/synthtool/commit/477764cc4ee6db346d3febef2bb1ea0abf27de52
diff --git a/synth.metadata b/synth.metadata
index 8b2b29d..7072446 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-api-core.git",
-        "sha": "a85533903c57be4809fe76435e298409e0903931"
+        "sha": "70ebe42601b3d088b3421233ef7d8245229b7265"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "487eba79f8260e34205d8ceb1ebcc65685085e19"
+        "sha": "477764cc4ee6db346d3febef2bb1ea0abf27de52"
       }
     }
   ],