refactor Array as a Protocol

Signed-off-by: nstarman <nstarman@users.noreply.github.com>

Author: nstarman

src/array_api_stubs/_draft/_types.py

@@ -8,6 +8,7 @@
 
 from dataclasses import dataclass
 from typing import (
+    TYPE_CHECKING,
     Any,
     List,
     Literal,
@@ -20,9 +21,14 @@
 )
 from enum import Enum
 
-array = TypeVar("array")
+
+if TYPE_CHECKING:
+    from .array_object import Array
+    from .data_types import DType
+
+array = TypeVar("array", bound="Array")
 device = TypeVar("device")
-dtype = TypeVar("dtype")
+dtype = TypeVar("dtype", bound="DType")
 SupportsDLPack = TypeVar("SupportsDLPack")
 SupportsBufferProtocol = TypeVar("SupportsBufferProtocol")
 PyCapsule = TypeVar("PyCapsule")
@@ -34,6 +40,7 @@
 @dataclass
 class finfo_object:
     """Dataclass returned by `finfo`."""
+
     bits: int
     eps: float
     max: float
@@ -44,6 +51,7 @@ class finfo_object:
 @dataclass
 class iinfo_object:
     """Dataclass returned by `iinfo`."""
+
     bits: int
     max: int
     min: int
@@ -60,6 +68,7 @@ def __len__(self, /) -> int:
         ...
 
 
+
 __all__ = [
     "Any",
     "List",