diff --git a/cs_util/__init__.py b/cs_util/__init__.py
index 287b47c..7d84992 100644
--- a/cs_util/__init__.py
+++ b/cs_util/__init__.py
@@ -35,5 +35,3 @@
         'Could not extract package metadata. Make sure the package is '
         + 'correctly installed.',
     )
-
-__version__ = _version
diff --git a/cs_util/example/math.py b/cs_util/example/math.py
index 496a4c6..315f9c2 100644
--- a/cs_util/example/math.py
+++ b/cs_util/example/math.py
@@ -162,3 +162,35 @@ def mad(input_data: np.ndarray) -> float:
 
     """
     return np.median(np.abs(input_data - np.median(input_data)))
+
+
+def add_two_floats(first_value: float, second_value: float) -> float:
+    """Add Two Floats.
+
+    Add two float values.
+
+    Parameters
+    ----------
+    first_value : float
+        First float value
+    second_value : float
+        Second float value
+
+    Returns
+    -------
+    float
+        Result of addition
+
+    Raises
+    ------
+    TypeError
+        For invalid input types.
+
+    """
+    fv_is_float = isinstance(first_value, float)
+    sv_is_float = isinstance(second_value, float)
+
+    if not all((fv_is_float, sv_is_float)):
+        raise TypeError('Inputs must be floats.')
+
+    return first_value + second_value
diff --git a/develop.txt b/develop.txt
index 8a28821..592123c 100644
--- a/develop.txt
+++ b/develop.txt
@@ -1,8 +1,8 @@
-coverage==5.3
-nose==1.3.7
-pytest==6.1.2
-pytest-cov==2.10.1
-pytest-pep8==1.0.6
-pytest-emoji==0.2.0
-pytest-flake8==1.0.6
-wemake-python-styleguide==0.14.1
+coverage
+nose
+pytest
+pytest-cov
+pytest-pep8
+pytest-emoji
+pytest-flake8
+wemake-python-styleguide
diff --git a/environment.yml b/environment.yml
new file mode 100644
index 0000000..67c55f2
--- /dev/null
+++ b/environment.yml
@@ -0,0 +1,8 @@
+name: cs_util
+channels:
+  - conda-forge
+dependencies:
+  - python==3.10
+  - pip>=21
+  - pip:
+    - -r requirements.txt
diff --git a/requirements.txt b/requirements.txt
index a00d712..90a862b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
-importlib_metadata==3.1.1
+importlib_metadata
 numpy
 astropy
 matplotlib
+pycodestyle==2.9.0
 vos
 datetime
diff --git a/setup.py b/setup.py
index 9dbbd7b..c3635e6 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
 license = 'MIT'
 
 # Set the package classifiers
-python_versions_supported = ['3.6', '3.7', '3.8', '3.9']
+python_versions_supported = ['3.6', '3.7', '3.8', '3.9', '3.10']
 os_platforms_supported = ['Unix', 'MacOS']
 
 lc_str = 'License :: OSI Approved :: {0} License'