From dd662b0d1265f2852b933a14e6fe57e76fc715dc Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Tue, 20 Dec 2022 09:52:24 -0800
Subject: [PATCH] Move Selector and Span to manimlib.typing

---
 manimlib/mobject/svg/mtex_mobject.py   | 17 +----------------
 manimlib/mobject/svg/string_mobject.py | 16 ++--------------
 manimlib/mobject/svg/text_mobject.py   | 15 ++-------------
 manimlib/typing.py                     | 12 +++++++++++-
 4 files changed, 16 insertions(+), 44 deletions(-)

diff --git a/manimlib/mobject/svg/mtex_mobject.py b/manimlib/mobject/svg/mtex_mobject.py
index 1a545666..c6c0102a 100644
--- a/manimlib/mobject/svg/mtex_mobject.py
+++ b/manimlib/mobject/svg/mtex_mobject.py
@@ -10,23 +10,8 @@ from manimlib.utils.tex_file_writing import tex_content_to_svg_file
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    import re
-    from typing import Iterable, Union
-
     from manimlib.mobject.types.vectorized_mobject import VGroup
-    from manimlib.typing import ManimColor
-
-    Span = tuple[int, int]
-    Selector = Union[
-        str,
-        re.Pattern,
-        tuple[Union[int, None], Union[int, None]],
-        Iterable[Union[
-            str,
-            re.Pattern,
-            tuple[Union[int, None], Union[int, None]]
-        ]]
-    ]
+    from manimlib.typing import ManimColor, Span, Selector
 
 
 SCALE_FACTOR_PER_FONT_POINT = 0.001
diff --git a/manimlib/mobject/svg/string_mobject.py b/manimlib/mobject/svg/string_mobject.py
index a21ed9b4..b97da8df 100644
--- a/manimlib/mobject/svg/string_mobject.py
+++ b/manimlib/mobject/svg/string_mobject.py
@@ -17,20 +17,8 @@ from manimlib.utils.color import int_to_hex
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from typing import Callable, Iterable, Union
-    from manimlib.typing import ManimColor
-
-    Span = tuple[int, int]
-    Selector = Union[
-        str,
-        re.Pattern,
-        tuple[Union[int, None], Union[int, None]],
-        Iterable[Union[
-            str,
-            re.Pattern,
-            tuple[Union[int, None], Union[int, None]]
-        ]]
-    ]
+    from typing import Callable
+    from manimlib.typing import ManimColor, Span, Selector
 
 
 class StringMobject(SVGMobject, ABC):
diff --git a/manimlib/mobject/svg/text_mobject.py b/manimlib/mobject/svg/text_mobject.py
index f504cc01..7fea568f 100644
--- a/manimlib/mobject/svg/text_mobject.py
+++ b/manimlib/mobject/svg/text_mobject.py
@@ -24,21 +24,10 @@ from manimlib.utils.simple_functions import hash_string
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from typing import Iterable, Union
+    from typing import Iterable
 
     from manimlib.mobject.types.vectorized_mobject import VGroup
-    from manimlib.typing import ManimColor
-    Span = tuple[int, int]
-    Selector = Union[
-        str,
-        re.Pattern,
-        tuple[Union[int, None], Union[int, None]],
-        Iterable[Union[
-            str,
-            re.Pattern,
-            tuple[Union[int, None], Union[int, None]]
-        ]]
-    ]
+    from manimlib.typing import ManimColor, Span, Selector
 
 
 TEXT_MOB_SCALE_FACTOR = 0.0076
diff --git a/manimlib/typing.py b/manimlib/typing.py
index 6764b412..5e383791 100644
--- a/manimlib/typing.py
+++ b/manimlib/typing.py
@@ -1,14 +1,24 @@
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from typing import Union, Tuple, Annotated, Literal
+    from typing import Union, Tuple, Annotated, Literal, Iterable
     from colour import Color
     import numpy as np
+    import re
 
     # Abbreviations for a common types
     ManimColor = Union[str, Color, None]
     RangeSpecifier = Tuple[float, float, float] | Tuple[float, float]
 
+
+    Span = tuple[int, int]
+    SingleSelector = Union[
+        str,
+        re.Pattern,
+        tuple[Union[int, None], Union[int, None]],
+    ]
+    Selector = Union[SingleSelector, Iterable[SingleSelector]]
+
     # These are various alternate names for np.ndarray meant to specify
     # certain shapes.
     #