docs: Move show_attribute_values option into "signatures" group

Author: pawamoy

docs/usage/configuration/members.md

@@ -519,50 +519,6 @@ def function_d():
 ////
 ///
 
-
-[](){#option-show_attribute_values}
-## `show_attribute_values`
-
-- **:octicons-package-24: Type [`bool`][] :material-equal: `True`{ title="default value" }**
-<!-- - **:octicons-project-template-24: Template :material-null:** (contained in [`class.html`][class template]) -->
-
-Show initial values of attributes in classes.
-
-```yaml title="in mkdocs.yml (global configuration)"
-plugins:
-- mkdocstrings:
-    handlers:
-      python:
-        options:
-          show_attribute_values: true
-```
-
-```md title="or in docs/some_page.md (local configuration)"
-::: path.to.object
-    options:
-      show_attribute_values: true
-```
-
-```python title="package/module.py"
-class SomeClass:
-  def __init__(self):
-      self.some_attr = 1
-```
-
-/// admonition | Preview
-    type: preview
-
-//// tab | With attribute values visible
-<h2><code>SomeClass</code></h2>
-<p>some_attr = 1</p>
-////
-
-//// tab | With attribute values hidden
-<h2><code>SomeClass</code></h2>
-<p>some_attr</p>
-////
-///
-
 [](){#option-show_submodules}
 ## `show_submodules`
 

docs/usage/configuration/signatures.md

@@ -483,6 +483,49 @@ function(param1, param2=None)
 ////
 ///
 
+[](){#option-show_attribute_values}
+## `show_attribute_values`
+
+- **:octicons-package-24: Type [`bool`][] :material-equal: `True`{ title="default value" }**
+<!-- - **:octicons-project-template-24: Template :material-null:** (contained in [`class.html`][class template]) -->
+
+Show initial values of attributes in classes.
+
+```yaml title="in mkdocs.yml (global configuration)"
+plugins:
+- mkdocstrings:
+    handlers:
+      python:
+        options:
+          show_attribute_values: true
+```
+
+```md title="or in docs/some_page.md (local configuration)"
+::: path.to.object
+    options:
+      show_attribute_values: true
+```
+
+```python title="package/module.py"
+class SomeClass:
+  def __init__(self):
+      self.some_attr = 1
+```
+
+/// admonition | Preview
+    type: preview
+
+//// tab | With attribute values visible
+<h2><code>SomeClass</code></h2>
+<p>some_attr = 1</p>
+////
+
+//// tab | With attribute values hidden
+<h2><code>SomeClass</code></h2>
+<p>some_attr</p>
+////
+///
+
 [](){#option-show_overloads}
 ## `show_overloads`
 

src/mkdocstrings_handlers/python/_internal/config.py

@@ -625,7 +625,7 @@ class PythonInputOptions:
     show_attribute_values: Annotated[
         bool,
         _Field(
-            group="members",
+            group="signatures",
             description="Show initial values of attributes in classes.",
         ),
     ] = True