From 4706c9590b4fca98de8b713dc7d402b74f4f6c16 Mon Sep 17 00:00:00 2001
From: fynnbe <thefynnbe@gmail.com>
Date: Thu, 2 May 2024 10:22:37 +0200
Subject: [PATCH] skip simple procs if their input is not present

(some inputs are optional)
---
 bioimageio/core/proc_ops.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bioimageio/core/proc_ops.py b/bioimageio/core/proc_ops.py
index b05d7c8b..96419b3e 100644
--- a/bioimageio/core/proc_ops.py
+++ b/bioimageio/core/proc_ops.py
@@ -73,6 +73,9 @@ def required_measures(self) -> Collection[Measure]:
     def get_output_shape(self, input_shape: PerAxis[int]) -> PerAxis[int]: ...
 
     def __call__(self, sample: Union[Sample, SampleBlock]) -> None:
+        if self.input not in sample.members:
+            return
+
         input_tensor = sample.members[self.input]
         output_tensor = self._apply(input_tensor, sample.stat)