I am done

rl/Lib/site-packages/matplotlib/_tri.pyi

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+# This is a private module implemented in C++
+# As such these type stubs are overly generic, but here to allow these types
+# as return types for public methods
+from typing import Any, final
+
+@final
+class TrapezoidMapTriFinder:
+    def __init__(self, *args, **kwargs) -> None: ...
+    def find_many(self, *args, **kwargs) -> Any: ...
+    def get_tree_stats(self, *args, **kwargs) -> Any: ...
+    def initialize(self, *args, **kwargs) -> Any: ...
+    def print_tree(self, *args, **kwargs) -> Any: ...
+
+@final
+class TriContourGenerator:
+    def __init__(self, *args, **kwargs) -> None: ...
+    def create_contour(self, *args, **kwargs) -> Any: ...
+    def create_filled_contour(self, *args, **kwargs) -> Any: ...
+
+@final
+class Triangulation:
+    def __init__(self, *args, **kwargs) -> None: ...
+    def calculate_plane_coefficients(self, *args, **kwargs) -> Any: ...
+    def get_edges(self, *args, **kwargs) -> Any: ...
+    def get_neighbors(self, *args, **kwargs) -> Any: ...
+    def set_mask(self, *args, **kwargs) -> Any: ...