Fixes the schema to allow input.from, output.as and export.as to be either a runtime expression string or object

Signed-off-by: Charles d'Avernas <[email protected]>

Author: cdavernas

dsl-reference.md

@@ -1486,8 +1486,7 @@ When set, runtimes must validate output data against the defined schema, unless
 | Property | Type | Required | Description |
 |----------|:----:|:--------:|-------------|
 | schema | [`schema`](#schema) | `no` | The [`schema`](#schema) used to describe and validate output data.<br>*Even though the schema is not required, it is strongly encouraged to document it, whenever feasible.* |
-| from | `string`<br>`object` | `no` | A [runtime expression](#runtime-expressions), if any, used to filter and/or mutate the workflow/task output. |
-| to | `string`<br>`object` | `no` | A [runtime expression](#runtime-expressions), if any, used to update the context, using both output and context data. |
+| as | `string`<br>`object` | `no` | A [runtime expression](#runtime-expressions), if any, used to filter and/or mutate the workflow/task output. |
 
 #### Examples
 

schema/workflow.yaml

@@ -884,7 +884,9 @@ $defs:
         $ref: '#/$defs/schema'
         description: The schema used to describe and validate the input of the workflow or task.
       from:
-        type: string
+        oneOf:
+          - type: string
+          - type: object
         description: A runtime expression, if any, used to mutate and/or filter the input of the workflow or task.
     description: Configures the input of a workflow or task.
   output:
@@ -894,7 +896,9 @@ $defs:
         $ref: '#/$defs/schema'
         description: The schema used to describe and validate the output of the workflow or task.
       as:
-        type: string
+        oneOf:
+          - type: string
+          - type: object
         description: A runtime expression, if any, used to mutate and/or filter the output of the workflow or task.
     description: Configures the output of a workflow or task.
   export:
@@ -904,7 +908,9 @@ $defs:
         $ref: '#/$defs/schema'
         description: The schema used to describe and validate the workflow context.
       as:
-        type: string
+        oneOf:
+          - type: string
+          - type: object
         description: A runtime expression, if any, used to export the output data to the context.
     description: Set the content of the context. 
   retryPolicy: