code: def columns_default() -> dict[str, Any]:
      """Default props for new columns"""
      return {
          "changed_by": 1,
          "created_by": 1,
          "datasets": [],
          "tables": [],
          "is_additive": False,
          "is_aggregation": False,
          "is_dimensional": False,
          "is_filterable": True,
          "is_increase_desired": True,
          "is_partition": False,
          "is_physical": True,
          "is_spatial": False,
          "is_temporal": False,
          "description": None,
          "extra_json": "{}",
          "unit": None,
          "warning_text": None,
          "is_managed_externally": False,
          "external_url": None,
      }
  
imports: from typing import Any, TYPE_CHECKING
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: columns_default() and returns: dict