feat: Add show_signature rendering option

Co-authored-by: Will Da Silva <will@willdasilva.xyz>

Author: pawamoy

src/mkdocstrings/handlers/python/renderer.py

@@ -36,6 +36,7 @@ class PythonRenderer(BaseRenderer):
         "show_object_full_path": False,
         "show_category_heading": False,
         "show_if_no_docstring": False,
+        "show_signature": True,
         "show_signature_annotations": False,
         "show_source": True,
         "show_bases": True,
@@ -54,7 +55,8 @@ class PythonRenderer(BaseRenderer):
     **`show_root_members_full_path`** | `bool` | Show the full Python path of objects that are children of the root object (for example, classes in a module). When False, `show_object_full_path` overrides. | `False`
     **`show_category_heading`** | `bool` | When grouped by categories, show a heading for each category. | `False`
     **`show_if_no_docstring`** | `bool` | Show the object heading even if it has no docstring or children with docstrings. | `False`
-    **`show_signature_annotations`** | `bool` | Show the type annotations in methods and functions signatures. | `False`
+    **`show_signature`** | `bool` | Show method and function signatures. | `True`
+    **`show_signature_annotations`** | `bool` | Show the type annotations in method and function signatures. | `False`
     **`show_source`** | `bool` | Show the source code of this object. | `True`
     **`show_bases`** | `bool` | Show the base classes of a class. | `True`
     **`group_by_category`** | `bool` | Group the object's children by categories: attributes, classes, functions, methods, and modules. | `True`

src/mkdocstrings/templates/python/material/signature.html

@@ -1,5 +1,5 @@
 {{ log.debug() }}
-{%- if signature -%}
+{%- if signature and config.show_signature -%}
   {%- with -%}
     {%- set ns = namespace(render_pos_only_separator=True, render_kw_only_separator=True, equal="=") -%}