Write documentation for pset_template API module

src/ifcopenshell-python/ifcopenshell/api/pset_template/remove_prop_template.py

@@ -20,11 +20,31 @@ import ifcopenshell.util.element
 
 
 class Usecase:
-    def __init__(self, file, **settings):
+    def __init__(self, file, prop_template=None):
+        """Removes a property template
+
+        Note that a property set template should always have at least one
+        property template to be valid, so take care when removing property
+        templates.
+
+        :param prop_template: The IfcSimplePropertyTemplate to remove.
+        :type prop_template: ifcopenshell.entity_instance.entity_instance
+        :return: None
+        :rtype: None
+
+        Example::
+
+            template = ifcopenshell.api.run("pset_template.add_pset_template", model, name="ABC_RiskFactors")
+
+            # Here's two propertes with just default values.
+            prop1 = ifcopenshell.api.run("pset_template.add_prop_template", model, pset_template=template)
+            prop2 = ifcopenshell.api.run("pset_template.add_prop_template", model, pset_template=template)
+
+            # Let's remove the second one.
+            ifcopenshell.api.run("pset_template.remove_prop_template", model, prop_template=prop2)
+        """
         self.file = file
-        self.settings = {"prop_template": None}
-        for key, value in settings.items():
-            self.settings[key] = value
+        self.settings = {"prop_template": prop_template}
 
     def execute(self):
         for inverse in self.file.get_inverse(self.settings["prop_template"]):