diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3a4a87d..b7240e5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.2] - 2025-10-23
+### Added:
+- Optional checks: Able to toggle for optional checks after importing bigtree. Previously, you can only set the
+environment variables before import.
+
 ## [1.0.2] - 2025-10-23
 ### Added:
 - Test: Fix code coverage.
diff --git a/bigtree/__init__.py b/bigtree/__init__.py
index dee74eef..e6d6cbc6 100644
--- a/bigtree/__init__.py
+++ b/bigtree/__init__.py
@@ -6,6 +6,7 @@
 from bigtree.dag.dag import DAG
 from bigtree.dag.export import dag_to_dataframe, dag_to_dict, dag_to_dot, dag_to_list
 from bigtree.dag.parsing import get_path_dag
+from bigtree.globals import ASSERTIONS
 from bigtree.node.basenode import BaseNode
 from bigtree.node.binarynode import BinaryNode
 from bigtree.node.dagnode import DAGNode
diff --git a/bigtree/globals.py b/bigtree/globals.py
index 52e79771..26b5fb64 100644
--- a/bigtree/globals.py
+++ b/bigtree/globals.py
@@ -1,3 +1,5 @@
 import os
 
-ASSERTIONS: bool = bool(os.environ.get("BIGTREE_CONF_ASSERTIONS", True))
+
+class ASSERTIONS:
+    FLAG: bool = bool(os.environ.get("BIGTREE_CONF_ASSERTIONS", True))
diff --git a/bigtree/node/basenode.py b/bigtree/node/basenode.py
index 6af8f728..f9262522 100644
--- a/bigtree/node/basenode.py
+++ b/bigtree/node/basenode.py
@@ -192,7 +192,7 @@ def parent(self: T, new_parent: T) -> None:
         Args:
             new_parent: parent node
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_parent_type(new_parent)
             self.__check_parent_loop(new_parent)
 
@@ -335,7 +335,7 @@ def children(self: T, new_children: list[T] | tuple[T] | set[T]) -> None:
         Args:
             new_children: child node
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_children_type(new_children)
             self.__check_children_loop(new_children)
         new_children = list(new_children)
diff --git a/bigtree/node/binarynode.py b/bigtree/node/binarynode.py
index 1fc6d574..89e856ea 100644
--- a/bigtree/node/binarynode.py
+++ b/bigtree/node/binarynode.py
@@ -166,7 +166,7 @@ def parent(self: T, new_parent: T | None) -> None:
         Args:
             new_parent: parent node
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_parent_type(new_parent)
             self._BaseNode__check_parent_loop(new_parent)  # type: ignore
 
@@ -296,7 +296,7 @@ def children(self: T, _new_children: list[T | None]) -> None:
         """
         self._BaseNode__check_children_type(_new_children)  # type: ignore
         new_children = self.__check_children_type(_new_children)
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_children_loop(new_children)
 
         current_new_children = {
diff --git a/bigtree/node/dagnode.py b/bigtree/node/dagnode.py
index ede174b8..a64f3f65 100644
--- a/bigtree/node/dagnode.py
+++ b/bigtree/node/dagnode.py
@@ -212,7 +212,7 @@ def parents(self: T, new_parents: list[T]) -> None:
         Args:
             new_parents: parent nodes
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_parent_type(new_parents)
             self.__check_parent_loop(new_parents)
 
@@ -311,7 +311,7 @@ def children(self: T, new_children: Iterable[T]) -> None:
         Args:
             new_children: child node
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             self.__check_children_type(new_children)
             self.__check_children_loop(new_children)
 
diff --git a/bigtree/node/node.py b/bigtree/node/node.py
index bbd473bb..ece0cb43 100644
--- a/bigtree/node/node.py
+++ b/bigtree/node/node.py
@@ -84,7 +84,7 @@ def __init__(self, name: str, sep: str = "/", **kwargs: Any):
         self.name = name
         self._sep = sep
         super().__init__(**kwargs)
-        if ASSERTIONS and not self.node_name:
+        if ASSERTIONS.FLAG and not self.node_name:
             raise exceptions.TreeError("Node must have a `name` attribute")
 
     @property
@@ -133,7 +133,7 @@ def _BaseNode__pre_assign_parent(self: T, new_parent: T) -> None:
         Args:
             new_parent: new parent to be added
         """
-        if ASSERTIONS and new_parent is not None:
+        if ASSERTIONS.FLAG and new_parent is not None:
             if any(
                 child.node_name == self.node_name and child is not self
                 for child in new_parent.children
@@ -149,7 +149,7 @@ def _BaseNode__pre_assign_children(self: T, new_children: list[T]) -> None:
         Args:
             new_children: new children to be added
         """
-        if ASSERTIONS:
+        if ASSERTIONS.FLAG:
             children_names = [node.node_name for node in new_children]
             duplicate_names = [
                 item[0] for item in Counter(children_names).items() if item[1] > 1
diff --git a/docs/others/remove_checks.md b/docs/others/remove_checks.md
index 3636c38c..99ee9acc 100644
--- a/docs/others/remove_checks.md
+++ b/docs/others/remove_checks.md
@@ -27,3 +27,10 @@ os.environ["BIGTREE_CONF_ASSERTIONS"] = ""
 
 import bigtree
 ```
+
+Alternatively, if you have already imported bigtree, you can set the configuration manually.
+
+```python
+import bigtree
+bigtree.ASSERTIONS.FLAG = False
+```
diff --git a/tests/node/test_basenode_no_assertions.py b/tests/node/test_basenode_no_assertions.py
index c701b4df..1dff2fc6 100644
--- a/tests/node/test_basenode_no_assertions.py
+++ b/tests/node/test_basenode_no_assertions.py
@@ -6,7 +6,7 @@
 from bigtree.node import basenode
 
 
-@patch("bigtree.node.basenode.ASSERTIONS", "")
+@patch("bigtree.node.basenode.ASSERTIONS.FLAG", "")
 class TestBaseNodeNoAssertions(unittest.TestCase):
     def setUp(self):
         """
diff --git a/tests/node/test_binarynode_no_assertions.py b/tests/node/test_binarynode_no_assertions.py
index 80efc405..357b3015 100644
--- a/tests/node/test_binarynode_no_assertions.py
+++ b/tests/node/test_binarynode_no_assertions.py
@@ -7,7 +7,7 @@
 from bigtree.utils.exceptions import TreeError
 
 
-@patch("bigtree.node.binarynode.ASSERTIONS", "")
+@patch("bigtree.node.binarynode.ASSERTIONS.FLAG", "")
 class TestBinaryNodeNoAssertions(unittest.TestCase):
     def setUp(self):
         self.a = binarynode.BinaryNode(1)
diff --git a/tests/node/test_dagnode_no_assertions.py b/tests/node/test_dagnode_no_assertions.py
index dca2c4d0..53adaeaf 100644
--- a/tests/node/test_dagnode_no_assertions.py
+++ b/tests/node/test_dagnode_no_assertions.py
@@ -6,7 +6,7 @@
 from bigtree.node import basenode, dagnode, node
 
 
-@patch("bigtree.node.dagnode.ASSERTIONS", "")
+@patch("bigtree.node.dagnode.ASSERTIONS.FLAG", "")
 class TestDAGNodeNoAssertions(unittest.TestCase):
     def setUp(self):
         """
diff --git a/tests/node/test_node.py b/tests/node/test_node.py
index 14605a46..c4a9eb37 100644
--- a/tests/node/test_node.py
+++ b/tests/node/test_node.py
@@ -182,7 +182,7 @@ def test_set_children_sep_different_error(self):
             path=path
         )
 
-    @patch("bigtree.node.node.ASSERTIONS", "")
+    @patch("bigtree.node.node.ASSERTIONS.FLAG", "")
     def test_set_children_sep_different_no_assertion(self):
         b = node.Node("b", sep="\\")
         self.a.children = [self.b, b]
diff --git a/tests/node/test_node_benchmark.py b/tests/node/test_node_benchmark.py
index 431a64e5..6564a4f9 100644
--- a/tests/node/test_node_benchmark.py
+++ b/tests/node/test_node_benchmark.py
@@ -3,6 +3,7 @@
 
 import pytest
 
+import bigtree
 from bigtree.node import node
 
 sys.setrecursionlimit(2000)
@@ -49,24 +50,52 @@ def test_node_benchmark_width_2_depth_10(benchmark):
 
 
 @pytest.mark.benchmark(group="width_1_depth_10")
-@patch("bigtree.node.basenode.ASSERTIONS", "")
+@patch("bigtree.node.basenode.ASSERTIONS.FLAG", "")
 def test_node_benchmark_width_1_depth_10_no_assertions(benchmark):
     benchmark.pedantic(run_construct_node, (10, 1), iterations=10, rounds=2)
 
 
+@pytest.mark.benchmark(group="width_1_depth_10")
+def test_node_benchmark_width_1_depth_10_no_assertions_config(benchmark):
+    bigtree.ASSERTIONS.FLAG = False
+    benchmark.pedantic(run_construct_node, (10, 1), iterations=10, rounds=2)
+    bigtree.ASSERTIONS.FLAG = True
+
+
 @pytest.mark.benchmark(group="width_1_depth_100")
-@patch("bigtree.node.basenode.ASSERTIONS", "")
+@patch("bigtree.node.basenode.ASSERTIONS.FLAG", "")
 def test_node_benchmark_width_1_depth_100_no_assertions(benchmark):
     benchmark.pedantic(run_construct_node, (100, 1), iterations=10, rounds=2)
 
 
+@pytest.mark.benchmark(group="width_1_depth_100")
+def test_node_benchmark_width_1_depth_100_no_assertions_config(benchmark):
+    bigtree.ASSERTIONS.FLAG = False
+    benchmark.pedantic(run_construct_node, (100, 1), iterations=10, rounds=2)
+    bigtree.ASSERTIONS.FLAG = True
+
+
 @pytest.mark.benchmark(group="width_1_depth_1000")
-@patch("bigtree.node.basenode.ASSERTIONS", "")
+@patch("bigtree.node.basenode.ASSERTIONS.FLAG", "")
 def test_node_benchmark_width_1_depth_1000_no_assertions(benchmark):
     benchmark.pedantic(run_construct_node, (1000, 1), iterations=10, rounds=2)
 
 
+@pytest.mark.benchmark(group="width_1_depth_1000")
+def test_node_benchmark_width_1_depth_1000_no_assertions_config(benchmark):
+    bigtree.ASSERTIONS.FLAG = False
+    benchmark.pedantic(run_construct_node, (1000, 1), iterations=10, rounds=2)
+    bigtree.ASSERTIONS.FLAG = True
+
+
 @pytest.mark.benchmark(group="width_2_depth_10")
-@patch("bigtree.node.basenode.ASSERTIONS", "")
+@patch("bigtree.node.basenode.ASSERTIONS.FLAG", "")
 def test_node_benchmark_width_2_depth_10_no_assertions(benchmark):
     benchmark.pedantic(run_construct_node, (10, 2), iterations=10, rounds=2)
+
+
+@pytest.mark.benchmark(group="width_2_depth_10")
+def test_node_benchmark_width_2_depth_10_no_assertions_config(benchmark):
+    bigtree.ASSERTIONS.FLAG = False
+    benchmark.pedantic(run_construct_node, (10, 2), iterations=10, rounds=2)
+    bigtree.ASSERTIONS.FLAG = True