docs: remove last occurrences to jinja2

docs/flow/stages/prompt/index.md

@@ -21,8 +21,8 @@ A Prompt has the following attributes:
 
 HTML name used for the prompt. This key is also used to later retrieve the data in expression policies:
 
-```jinja2
-{{ request.context.prompt_data.<field_key> }}
+```python
+request.context.get('prompt_data').get('<field_key>')
 ```
 
 ### `label`

docs/flow/stages/prompt/validation.md

@@ -4,13 +4,12 @@ Further validation of prompts can be done using policies.
 
 To validate that two password fields are identical, create the following expression policy:
 
-```jinja2
-{% if request.context.prompt_data.password == request.context.prompt_data.password_repeat %}
-True
-{% else %}
-{% do pb_message("Passwords don't match.") %}
-False
-{% endif %}
+```python
+if request.context.get('prompt_data').get('password') == request.context.get('prompt_data').get('password_repeat'):
+    return True
+
+pb_message("Passwords don't match.")
+return False
 ```
 This policy expects you two have two password fields with `field_key` set to `password` and `password_repeat`.
 

docs/policies/expression.md

@@ -1,5 +1,8 @@
 # Expression Policies
 
+!!! notice
+    These variables are available in addition to the common variables/functions defined in [**Expressions**](../expressions/index.md)
+
 The passing of the policy is determined by the return value of the code. Use `return True` to pass a policy and `return False` to fail it.
 
 ### Available Functions

docs/property-mappings/expression.md

@@ -2,6 +2,9 @@
 
 The property mapping should return a value that is expected by the Provider/Source. What types are supported, is documented in the individual Provider/Source. Returning `None` is always accepted, this simply skips this mapping.
 
+!!! notice
+    These variables are available in addition to the common variables/functions defined in [**Expressions**](../expressions/index.md)
+
 ### Context Variables
 
 - `user`: The current user, this might be `None` if there is no contextual user. ([ref](../expressions/reference/user-object.md))