Updated array_caster to match numpy/eigen typing.Annotated stlye

Author: timohl

include/pybind11/stl.h

@@ -479,11 +479,12 @@ struct array_caster {
     using cast_op_type = movable_cast_op_type<T_>;
 
     static constexpr auto name
-        = const_name<Resizable>(const_name(""), const_name("Annotated["))
+        = const_name<Resizable>(const_name(""), const_name("typing.Annotated["))
           + io_name("collections.abc.Sequence", "list") + const_name("[") + value_conv::name
           + const_name("]")
-          + const_name<Resizable>(
-              const_name(""), const_name(", FixedSize(") + const_name<Size>() + const_name(")]"));
+          + const_name<Resizable>(const_name(""),
+                                  const_name(", \"FixedSize(") + const_name<Size>()
+                                      + const_name(")\"]"));
 };
 
 template <typename Type, size_t Size>

tests/test_stl.py

@@ -44,10 +44,13 @@ def test_array(doc):
     assert m.load_array(lst)
     assert m.load_array(tuple(lst))
 
-    assert doc(m.cast_array) == "cast_array() -> Annotated[list[int], FixedSize(2)]"
+    assert (
+        doc(m.cast_array)
+        == 'cast_array() -> typing.Annotated[list[int], "FixedSize(2)"]'
+    )
     assert (
         doc(m.load_array)
-        == "load_array(arg0: Annotated[collections.abc.Sequence[int], FixedSize(2)]) -> bool"
+        == 'load_array(arg0: typing.Annotated[collections.abc.Sequence[int], "FixedSize(2)"]) -> bool'
     )