Make all doc fragments, module utils, and plugin utils private (#1144)

* Make all doc fragments, module utils, and plugin utils private.

* Remove some unused and no longer needed imports.

This hopefully also fixes the CI issues, which do not happen locally for me...

* Fix formatting.

* Try to make CI happy, again.

* Fix imports.

* Lint.

plugins/plugin_utils/_unsafe.py

@@ -0,0 +1,43 @@
+# Copyright (c) 2023, Felix Fontein <felix@fontein.de>
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# Note that this module util is **PRIVATE** to the collection. It can have breaking changes at any time.
+# Do not use this from other collections or standalone plugins/modules!
+
+from __future__ import annotations
+
+import re
+from collections.abc import Mapping, Set
+
+from ansible.module_utils.common.collections import is_sequence
+from ansible.utils.unsafe_proxy import (
+    AnsibleUnsafe,
+)
+from ansible.utils.unsafe_proxy import wrap_var as _make_unsafe
+
+
+_RE_TEMPLATE_CHARS = re.compile("[{}]")
+_RE_TEMPLATE_CHARS_BYTES = re.compile(b"[{}]")
+
+
+def make_unsafe(value):
+    if value is None or isinstance(value, AnsibleUnsafe):
+        return value
+
+    if isinstance(value, Mapping):
+        return dict((make_unsafe(key), make_unsafe(val)) for key, val in value.items())
+    elif isinstance(value, Set):
+        return set(make_unsafe(elt) for elt in value)
+    elif is_sequence(value):
+        return type(value)(make_unsafe(elt) for elt in value)
+    elif isinstance(value, bytes):
+        if _RE_TEMPLATE_CHARS_BYTES.search(value):
+            value = _make_unsafe(value)
+        return value
+    elif isinstance(value, str):
+        if _RE_TEMPLATE_CHARS.search(value):
+            value = _make_unsafe(value)
+        return value
+
+    return value