Patched code sample

import ast

# Simplified representation from src/Mod/BIM/bimcommands/BimProjectManager.py
class BimProjectManager:
    def load_template_properties(self, document):
        """
        Loads working plane properties from a BIM project template.
        The 'document' object has a 'Meta' attribute, which is a dict
        of properties loaded from an untrusted FCStd file.
        """
        if not hasattr(document, "Meta"):
            return

        meta = document.Meta

        if "wpposition" in meta:
            try:
                # FIX: Use ast.literal_eval to safely parse simple data literals
                pos_tuple = ast.literal_eval(meta["wpposition"])
                # In the real application, pos_tuple would be used to set a
                # FreeCAD.Vector object for the user interface.
            except (ValueError, SyntaxError):
                # Error handling simplified for demonstration
                pass

        # Other properties like 'wpu', 'wpv', and 'wpaxis' were
        # handled with the same vulnerable pattern.