WIP - Loop node advanced parameters + complete_if_empty (#1675)

skyvern/forge/sdk/workflow/models/block.py

@@ -765,6 +765,7 @@ class ForLoopBlock(Block):
     loop_blocks: list[BlockTypeVar]
     loop_over: PARAMETER_TYPE | None = None
     loop_variable_reference: str | None = None
+    complete_if_empty: bool = False
 
     def get_all_parameters(
         self,
@@ -849,7 +850,10 @@ class ForLoopBlock(Block):
                 raise NotImplementedError()
 
         else:
-            raise NoIterableValueFound()
+            if self.complete_if_empty:
+                return []
+            else:
+                raise NoIterableValueFound()
 
         if isinstance(parameter_value, list):
             return parameter_value

skyvern/forge/sdk/workflow/models/yaml.py

@@ -146,6 +146,7 @@ class ForLoopBlockYAML(BlockYAML):
     loop_blocks: list["BLOCK_YAML_SUBCLASSES"]
     loop_over_parameter_key: str = ""
     loop_variable_reference: str | None = None
+    complete_if_empty: bool = False
 
 
 class CodeBlockYAML(BlockYAML):

skyvern/forge/sdk/workflow/service.py

@@ -1512,6 +1512,7 @@ class WorkflowService:
                 loop_blocks=loop_blocks,
                 output_parameter=output_parameter,
                 continue_on_failure=block_yaml.continue_on_failure,
+                complete_if_empty=block_yaml.complete_if_empty,
             )
         elif block_yaml.block_type == BlockType.CODE:
             return CodeBlock(