diff --git a/pandas-stubs/_testing/__init__.pyi b/pandas-stubs/_testing/__init__.pyi
index aba20f5de..c223c8096 100644
--- a/pandas-stubs/_testing/__init__.pyi
+++ b/pandas-stubs/_testing/__init__.pyi
@@ -1,65 +1,117 @@
-from collections.abc import Generator
+from collections.abc import (
+    Container,
+    Generator,
+    Iterable,
+)
 from contextlib import contextmanager
 from typing import (
     Any,
     Literal,
     overload,
 )
+import warnings
 
+from matplotlib.artist import Artist
+import numpy as np
 from pandas import (
+    Categorical,
     DataFrame,
     Index,
     Series,
 )
+from pandas.arrays import (
+    DatetimeArray,
+    IntervalArray,
+    PeriodArray,
+    SparseArray,
+    TimedeltaArray,
+)
+from pandas.core.arrays.base import ExtensionArray
+
+from pandas._typing import (
+    AnyArrayLike,
+    T,
+)
 
 def assert_almost_equal(
-    left,
-    right,
-    check_dtype: bool | str = ...,
-    check_less_precise: bool | int = ...,
+    left: T,
+    right: T,
+    check_dtype: bool | Literal["equiv"] = ...,
+    rtol: float = ...,
+    atol: float = ...,
     **kwargs,
-): ...
-def assert_dict_equal(left, right, compare_keys: bool = ...): ...
-def assert_index_equal(left: Index, right: Index) -> None: ...
-def assert_class_equal(left, right, exact: bool | str = ..., obj=...): ...
-def assert_attr_equal(attr, left, right, obj: str = ...): ...
-def assert_is_valid_plot_return_object(objs) -> None: ...
-def assert_is_sorted(seq) -> None: ...
+) -> None: ...
+def assert_dict_equal(left: dict, right: dict, compare_keys: bool = ...) -> None: ...
+def assert_index_equal(
+    left: Index,
+    right: Index,
+    exact: bool | Literal["equiv"] = ...,
+    check_names: bool = ...,
+    check_exact: bool = ...,
+    check_categorical: bool = ...,
+    check_order: bool = ...,
+    rtol: float = ...,
+    atol: float = ...,
+    obj: str = ...,
+) -> None: ...
+def assert_class_equal(
+    left: T, right: T, exact: bool | Literal["equiv"] = ..., obj: str = ...
+) -> None: ...
+def assert_attr_equal(
+    attr: str, left: object, right: object, obj: str = ...
+) -> None: ...
+def assert_is_valid_plot_return_object(
+    objs: Series | np.ndarray | Artist | tuple | dict,
+) -> None: ...
+def assert_is_sorted(seq: AnyArrayLike) -> None: ...
 def assert_categorical_equal(
-    left,
-    right,
+    left: Categorical,
+    right: Categorical,
     check_dtype: bool = ...,
     check_category_order: bool = ...,
     obj: str = ...,
 ) -> None: ...
 def assert_interval_array_equal(
-    left, right, exact: str = ..., obj: str = ...
+    left: IntervalArray,
+    right: IntervalArray,
+    exact: bool | Literal["equiv"] = ...,
+    obj: str = ...,
+) -> None: ...
+def assert_period_array_equal(
+    left: PeriodArray, right: PeriodArray, obj: str = ...
+) -> None: ...
+def assert_datetime_array_equal(
+    left: DatetimeArray, right: DatetimeArray, check_freq: bool = ...
+) -> None: ...
+def assert_timedelta_array_equal(
+    left: TimedeltaArray, right: TimedeltaArray, check_freq: bool = ...
 ) -> None: ...
-def assert_period_array_equal(left, right, obj: str = ...) -> None: ...
-def assert_datetime_array_equal(left, right, obj: str = ...) -> None: ...
-def assert_timedelta_array_equal(left, right, obj: str = ...) -> None: ...
 def assert_numpy_array_equal(
     left,
     right,
     strict_nan: bool = ...,
-    check_dtype: bool = ...,
-    err_msg=...,
-    check_same=...,
+    check_dtype: bool | Literal["equiv"] = ...,
+    err_msg: str | None = ...,
+    check_same: Literal["copy", "same"] | None = ...,
     obj: str = ...,
-): ...
+    index_values: Index | np.ndarray | None = ...,
+) -> None: ...
 def assert_extension_array_equal(
-    left,
-    right,
-    check_dtype: bool = ...,
-    check_less_precise: bool = ...,
+    left: ExtensionArray,
+    right: ExtensionArray,
+    check_dtype: bool | Literal["equiv"] = ...,
+    index_values: Index | np.ndarray | None = ...,
     check_exact: bool = ...,
+    rtol: float = ...,
+    atol: float = ...,
+    obj: str = ...,
 ) -> None: ...
 @overload
 def assert_series_equal(
     left: Series,
     right: Series,
-    check_dtype: bool = ...,
-    check_index_type: bool | str = ...,
+    check_dtype: bool | Literal["equiv"] = ...,
+    check_index_type: bool | Literal["equiv"] = ...,
     check_series_type: bool = ...,
     check_names: bool = ...,
     check_exact: bool = ...,
@@ -79,8 +131,8 @@ def assert_series_equal(
 def assert_series_equal(
     left: Series,
     right: Series,
-    check_dtype: bool = ...,
-    check_index_type: bool | str = ...,
+    check_dtype: bool | Literal["equiv"] = ...,
+    check_index_type: bool | Literal["equiv"] = ...,
     check_series_type: bool = ...,
     check_names: bool = ...,
     check_exact: bool = ...,
@@ -103,7 +155,6 @@ def assert_frame_equal(
     check_index_type: bool | Literal["equiv"] = ...,
     check_column_type: bool | Literal["equiv"] = ...,
     check_frame_type: bool = ...,
-    check_less_precise: int | bool = ...,
     check_names: bool = ...,
     by_blocks: bool = ...,
     check_exact: bool = ...,
@@ -111,29 +162,27 @@ def assert_frame_equal(
     check_categorical: bool = ...,
     check_like: bool = ...,
     check_freq: bool = ...,
-    check_flag: bool = ...,
+    check_flags: bool = ...,
     rtol: float = ...,
     atol: float = ...,
     obj: str = ...,
 ) -> None: ...
 def assert_equal(left, right, **kwargs) -> None: ...
-def assert_sp_array_equal(
-    left,
-    right,
-    check_dtype: bool = ...,
-    check_kind: bool = ...,
-    check_fill_value: bool = ...,
-    consolidate_block_indices: bool = ...,
-) -> None: ...
-def assert_contains_all(iterable, dic) -> None: ...
-def assert_copy(iter1, iter2, **eql_kwargs) -> None: ...
+def assert_sp_array_equal(left: SparseArray, right: SparseArray) -> None: ...
+def assert_contains_all(iterable: Iterable[T], dic: Container[T]) -> None: ...
+def assert_copy(iter1: Iterable[T], iter2: Iterable[T], **eql_kwargs) -> None: ...
+@contextmanager
 def assert_produces_warning(
-    expected_warning=...,
-    filter_level: str = ...,
-    clear=...,
+    expected_warning: (
+        type[Warning] | Literal[False] | tuple[type[Warning], ...] | None
+    ) = ...,
+    filter_level: Literal[
+        "error", "ignore", "always", "default", "module", "once"
+    ] = ...,
     check_stacklevel: bool = ...,
     raise_on_extra_warnings: bool = ...,
-) -> None: ...
+    match: str | None = None,
+) -> Generator[list[warnings.WarningMessage], None, None]: ...
 @contextmanager
 def ensure_clean(
     filename: str | None = ..., return_filelike: bool = ..., **kwargs: Any
diff --git a/pandas-stubs/io/clipboards.pyi b/pandas-stubs/io/clipboards.pyi
index 0cfab7773..e7ef8305d 100644
--- a/pandas-stubs/io/clipboards.pyi
+++ b/pandas-stubs/io/clipboards.pyi
@@ -76,8 +76,6 @@ def read_clipboard(
     encoding: str | None = ...,
     encoding_errors: str | None = ...,
     dialect: str | csv.Dialect = ...,
-    # error_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
-    # warn_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
     on_bad_lines: (
         Literal["error", "warn", "skip"] | Callable[[list[str]], list[str] | None]
     ) = ...,
@@ -137,8 +135,6 @@ def read_clipboard(
     encoding: str | None = ...,
     encoding_errors: str | None = ...,
     dialect: str | csv.Dialect = ...,
-    # error_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
-    # warn_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
     on_bad_lines: (
         Literal["error", "warn", "skip"] | Callable[[list[str]], list[str] | None]
     ) = ...,
@@ -198,8 +194,6 @@ def read_clipboard(
     encoding: str | None = ...,
     encoding_errors: str | None = ...,
     dialect: str | csv.Dialect = ...,
-    # error_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
-    # warn_bad_lines: bool | None = ...,  # Deprecated: 1.3.0
     on_bad_lines: (
         Literal["error", "warn", "skip"] | Callable[[list[str]], list[str] | None]
     ) = ...,