From a59ea00074946a575ab90d64d5a0e7d42676cd64 Mon Sep 17 00:00:00 2001
From: "Lex Darlog (DRL)" <3897975+Lex-DRL@users.noreply.github.com>
Date: Tue, 14 Apr 2026 06:55:29 -0300
Subject: [PATCH] `ValidateKeys`

---
 node_validate.py | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 node_validate.py

diff --git a/node_validate.py b/node_validate.py
new file mode 100644
index 0000000..ce3a333
--- /dev/null
+++ b/node_validate.py
@@ -0,0 +1,58 @@
+# encoding: utf-8
+"""Code for the dict-validator node."""
+
+from inspect import cleandoc as _cleandoc
+
+from comfy_api.latest import io as _io
+
+from .__meta import (
+	category_dict as _category_dict,
+	pack_id_suffix as _pack_id
+)
+from .__typing import _A, _U, _O, _t, T as _T, FormatDict as _FormatDict
+from ._dict import _verify_input_dict
+from ._io_custom import (
+	_BaseNode,
+	_DICT_INPUT_OPTIONAL, _DICT_OUTPUT,
+	_schema_old_name
+)
+from .docstring_formatter import format_docstring as _format_docstring
+
+# ----------------------------------------------------------
+
+class ValidateKeys(_BaseNode):
+	"""
+	Verify the dict to have string-formatting-compatible keys. No need to add it before "String Formatter" node,
+	but it might be handy to verify the dict in the very beginning of the graph - right after the keys are set.
+	"""
+	_schema = _io.Schema(
+		node_id=f'ValidateKeys{_pack_id}',
+		display_name='Validate Dict',
+		category=_category_dict,
+		description=_format_docstring(_cleandoc(__doc__)),
+		inputs=[_DICT_INPUT_OPTIONAL],
+		outputs=[_DICT_OUTPUT],
+		# hidden=[_io.Hidden.unique_id],
+		is_output_node=True,
+	)
+
+	@classmethod
+	def execute(cls, dict: _O[_FormatDict] = None) -> _io.NodeOutput:
+		# try:
+		# 	_verify_input_dict(dict, error_if_none=True)
+		# except Exception:
+		# 	_show_text_on_node('❌', unique_id)
+		# 	raise
+		# 	return (Null, )
+		# _show_text_on_node('✅', unique_id)
+		_verify_input_dict(dict, error_if_none=True)
+		return _io.NodeOutput(dict)
+
+# ==========================================================
+# Deprecated node with old ID (for backwards compatibility)
+
+class ValidateKeysOld1(ValidateKeys):
+	_schema = _schema_old_name(
+		ValidateKeys._schema,
+		'StringConstructorValidateKeys'
+	)