Fix param generation

Author: dbanty

openapi_python_client/templates/endpoint_macros.py.jinja

@@ -7,17 +7,25 @@
 {{ transform(property, property.python_name, destination) }}
         {% endif %}
     {% endfor %}
-params = {
+params: Dict[str, Any] = {
     {% for property in endpoint.query_parameters %}
         {% if property.required %}
+            {% if property.template %}
     "{{ property.name }}": {{ "json_" + property.python_name }},
+            {% else %}
+    "{{ property.name }}": {{ property.python_name }},
+            {% endif %}
         {% endif %}
     {% endfor %}
 }
     {% for property in endpoint.query_parameters %}
         {% if not property.required %}
 if {{ property.python_name }} is not None:
-    params["{{ property.name }}"] = {{ "json_" + property.python_name  }}
+            {% if property.template %}
+    params["{{ property.name }}"] = {{ "json_" + property.python_name }}
+            {% else %}
+    params["{{ property.name }}"] = {{ property.python_name }}
+            {% endif %}
         {% endif %}
     {% endfor %}
 {% endif %}