diff --git a/rplugin/python3/mrpy/clickup.py b/rplugin/python3/mrpy/clickup.py
index cae45bd..a1794d8 100644
--- a/rplugin/python3/mrpy/clickup.py
+++ b/rplugin/python3/mrpy/clickup.py
@@ -4,42 +4,9 @@ from json import loads
 from os import environ
 from typing import Any, Callable, Self, TypedDict
 
-from urllib.request import Request, urlopen
-
 from .hints import JSONDataMap
-
-
-def get(
-    url: str,
-    query_params: dict[str, str] | None = None,
-    headers: dict[str, str] | None = None,
-) -> str:
-    with urlopen(
-        Request(
-            url + ("?" + "&".join(f"{k}={v}" for k, v in query_params.items()))
-            if query_params
-            else "",
-            headers=headers or {},
-            method="GET",
-        ),
-    ) as resp:
-        return resp.read().decode("utf-8")
-
-
-def put(
-    url: str,
-    data: dict[str, str] | None = None,
-    headers: dict[str, str] | None = None,
-) -> str:
-    with urlopen(
-        Request(
-            url,
-            str(data).encode(),
-            headers=headers or {},
-            method="PUT",
-        ),
-    ) as resp:
-        return resp.read().decode("utf-8")
+from .requests import get, put
+from .env import EnvVar
 
 
 class TaskRespDict(TypedDict):
@@ -134,33 +101,22 @@ class ClickupTask:
         return ret
 
 
-def get_env_var(var_name: str, err_msg: str = "") -> Callable[[], str]:
-    def wrapper(var: str = var_name) -> str:
-        try:
-            return environ[var]
-        except KeyError as e:
-            e.add_note(err_msg)
-            raise
-
-    return wrapper
-
-
 @dataclass
 class ClickupSession:
     auth_key: str = field(
-        default_factory=get_env_var(
+        default_factory=EnvVar(
             "CLICKUP_AUTH",
             "clickup auth token is required to be set",
         )
     )
     workspace_id: str = field(
-        default_factory=get_env_var(
+        default_factory=EnvVar(
             "CLICKUP_WORKSPACE_ID",
             "clickup workspace id is required to be set",
         )
     )
     user_id: str = field(
-        default_factory=get_env_var(
+        default_factory=EnvVar(
             "CLICKUP_USER_ID",
             "clickup user id is required to be set",
         )
diff --git a/rplugin/python3/mrpy/env.py b/rplugin/python3/mrpy/env.py
new file mode 100644
index 0000000..57ebd9a
--- /dev/null
+++ b/rplugin/python3/mrpy/env.py
@@ -0,0 +1,24 @@
+from dataclasses import dataclass
+from os import environ
+
+
+@dataclass
+class EnvVar:
+    """
+    Environment Variable fetcher for use in dataclass ``field(default_factory=...)``
+
+    >>> @dataclass
+    >>> class SomeDataclass:
+    ...     field_name: str = field(default_factory=EnvVar("SOME_VAR_NAME", "err msg"))
+
+    """
+
+    var_name: str
+    err_msg: str = ""
+
+    def __call__(self) -> str:
+        try:
+            return environ[self.var_name]
+        except KeyError as e:
+            e.add_note(self.err_msg)
+            raise
diff --git a/rplugin/python3/mrpy/requests.py b/rplugin/python3/mrpy/requests.py
new file mode 100644
index 0000000..fda6efc
--- /dev/null
+++ b/rplugin/python3/mrpy/requests.py
@@ -0,0 +1,34 @@
+from urllib.request import Request, urlopen
+
+
+def get(
+    url: str,
+    query_params: dict[str, str] | None = None,
+    headers: dict[str, str] | None = None,
+) -> str:
+    with urlopen(
+        Request(
+            url + ("?" + "&".join(f"{k}={v}" for k, v in query_params.items()))
+            if query_params
+            else "",
+            headers=headers or {},
+            method="GET",
+        ),
+    ) as resp:
+        return resp.read().decode("utf-8")
+
+
+def put(
+    url: str,
+    data: dict[str, str] | None = None,
+    headers: dict[str, str] | None = None,
+) -> str:
+    with urlopen(
+        Request(
+            url,
+            str(data).encode(),
+            headers=headers or {},
+            method="PUT",
+        ),
+    ) as resp:
+        return resp.read().decode("utf-8")