feat: add skip_field logic to export loop

schematics/transforms.py

@@ -234,7 +234,7 @@ def _mutate(schema, mutable, raw_data, context):
 
 
 def export_loop(schema, instance_or_dict, field_converter=None, role=None, raise_error_on_role=True,
-                export_level=None, app_data=None, context=None):
+                export_level=None, app_data=None, context=None, skip_fields=None):
     """
     The export_loop function is intended to be a general loop definition that
     can be used for any form of data shaping, such as application of roles or
@@ -292,10 +292,15 @@ def export_loop(schema, instance_or_dict, field_converter=None, role=None, raise
 
     if isinstance(instance_or_dict, models.Model):
         instance_or_dict = instance_or_dict._Model__data
+    
+    fields_to_skip = skip_fields if skip_fields is not None else []
 
     for field_name, field, value in atoms(schema, instance_or_dict):
         serialized_name = field.serialized_name or field_name
 
+        if serialized_name in fields_to_skip:
+            continue
+
         if filter_func is not None:
             value = filter_func(field_name, value, context)
             if value is ForbiddenRole: