Python: add getAnAttributeWrite

Author: tausbn

python/ql/src/semmle/python/dataflow/new/internal/LocalSources.qll

@@ -59,6 +59,11 @@ class LocalSourceNode extends Node {
    */
   AttrRead getAnAttributeRead(string attrName) { result = getAnAttributeReference(attrName) }
 
+  /**
+   * Gets a write of attribute `attrName` on this node.
+   */
+  AttrWrite getAnAttributeWrite(string attrName) { result = getAnAttributeReference(attrName) }
+
   /**
    * Gets a reference (read or write) of any attribute on this node.
    */
@@ -73,6 +78,11 @@ class LocalSourceNode extends Node {
    */
   AttrRead getAnAttributeRead() { result = getAnAttributeReference() }
 
+  /**
+   * Gets a write of any attribute on this node.
+   */
+  AttrWrite getAnAttributeWrite() { result = getAnAttributeReference() }
+
   /**
    * Gets a call to this node.
    */