webanno: added skip_context parameter to WebAnnoConfig

Author: proycon

src/annotation.rs

@@ -498,6 +498,9 @@ impl PyAnnotation {
             if let Ok(Some(v)) = kwargs.get_item("extra_context") {
                 config.extra_context = v.extract()?;
             }
+            if let Ok(Some(v)) = kwargs.get_item("skip_context") {
+                config.skip_context = v.extract()?;
+            }
             if let Ok(Some(v)) = kwargs.get_item("context_namespaces") {
                 config.context_namespaces = {
                     let mut namespaces = Vec::new();

stam.pyi

@@ -860,8 +860,15 @@ class Annotation:
             IRI prefix for Text Resources. Will be prepended if the resource public ID is not an IRI yet.
 
         'extra_context`: `[str]`
-            Extra JSON-LD context to export, these must be URLs to JSONLD files.
-
+            Extra JSON-LD context to export, these must be URLs to JSONLD files. 
+            The contexts you provide also double as possible STAM dataset IDs. 
+            Any keys in these sets that are not full IRIs will
+            be copied as-is to the output (as alias rather than joined with the set ID to form a
+            full IRI ), leaving interpretation it up to the JSON-LD context.
+
+        'skip_context`: `bool`
+            Do not output @context when outputting web annotations (useful if already done at an earlier stage) 
+            
         `auto_generated`: `bool`
             Automatically add a 'generated' triple for each annotation, with the timestamp of serialisation