feat: add support for nullable parameters in API calls in python

templates/python/base/params.twig

@@ -1,10 +1,16 @@
         api_params = {}
+        nullable_params = []
+
 {% if method.parameters.all | length %}
 {% for parameter in method.parameters.all  %}
 {% if parameter.required and not parameter.nullable %}
         if {{ parameter.name | escapeKeyword | caseSnake }} is None:
             raise {{spec.title | caseUcfirst}}Exception('Missing required parameter: "{{ parameter.name | escapeKeyword | caseSnake }}"')
 
+{% endif %}
+{% if parameter.nullable %}
+        nullable_params.append('{{ parameter.name }}')
+
 {% endif %}
 {% endfor %}
 {% for parameter in method.parameters.path %}

templates/python/base/requests/api.twig

@@ -5,4 +5,4 @@
 {% for key, header in method.headers %}
             '{{ key }}': '{{ header }}',
 {% endfor %}
-        }, api_params{% if method.type == 'webAuth' %}, response_type='location'{% endif %})
+        }, api_params, nullable_params{% if method.type == 'webAuth' %}, response_type='location'{% endif %})

templates/python/package/client.py.twig

@@ -49,14 +49,18 @@ class Client:
         return self
 {% endfor %}
 
-    def call(self, method, path='', headers=None, params=None, response_type='json'):
+    def call(self, method, path='', headers=None, params=None, nullable_params=None, response_type='json'):
         if headers is None:
             headers = {}
 
         if params is None:
             params = {}
 
-        params = {k: v for k, v in params.items() if v is not None}  # Remove None values from params dictionary
+        if nullable_params is None:
+            nullable_params = []
+
+        # Only filter out None values for non-nullable params
+        params = {k: v for k, v in params.items() if v is not None or k in nullable_params}
 
         data = {}
         files = {}