From f2300a9a5e1729cb5219cc5c7295e61d8035dc3b Mon Sep 17 00:00:00 2001
From: Nikhil Kumar <nikhilkumar516@gmail.com>
Date: Tue, 11 Apr 2023 10:37:18 -0400
Subject: [PATCH] Allow empty output from facets

---
 cwl/facets-workflow.cwl | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/cwl/facets-workflow.cwl b/cwl/facets-workflow.cwl
index ce3ab28..0811a7a 100644
--- a/cwl/facets-workflow.cwl
+++ b/cwl/facets-workflow.cwl
@@ -152,7 +152,7 @@ steps:
         purity_png:
           type:
             type: array
-            items: [File]
+            items: ['null', File]
         purity_seg:
           type:
             type: array
@@ -160,7 +160,7 @@ steps:
         hisens_png:
           type:
             type: array
-            items: [File]
+            items: ['null', File]
         hisens_seg:
           type:
             type: array
@@ -281,7 +281,7 @@ steps:
             purity_png:
               type:
                 type: array
-                items: [File]
+                items: ['null', File]
             purity_seg:
               type:
                 type: array
@@ -289,7 +289,7 @@ steps:
             hisens_png:
               type:
                 type: array
-                items: [File]
+                items: ['null', File]
             hisens_seg:
               type:
                 type: array
@@ -338,7 +338,7 @@ steps:
             purity_png:
               type:
                 type: array
-                items: [File]
+                items: ['null', File]
             purity_seg:
               type:
                 type: array
@@ -346,7 +346,7 @@ steps:
             hisens_png:
               type:
                 type: array
-                items: [File]
+                items: ['null', File]
             hisens_seg:
               type:
                 type: array