diff --git a/pytest_abra/pytest_abra.py b/pytest_abra/pytest_abra.py
index 33a74ae..db6514f 100644
--- a/pytest_abra/pytest_abra.py
+++ b/pytest_abra/pytest_abra.py
@@ -63,6 +63,12 @@ def DIR(request) -> DirManager:
 
 @pytest.fixture(scope="session")
 def ENV_FILES(DIR: DirManager) -> dict[int, EnvFile]:
+    """Dictionary of all EnvFile instances of the current test run
+
+    key: runner_index
+    value: EnvFile of the related env file
+    """
+
     out: dict[int, EnvFile] = dict()
     for env_path in DIR.ENV_FILES.glob("*.env"):
         config: dict[str, str] = dotenv_values(env_path)  # type: ignore
@@ -76,12 +82,14 @@ def ENV_FILES(DIR: DirManager) -> dict[int, EnvFile]:
 
 @pytest.fixture(scope="session")
 def dotenv_config(request, ENV_FILES: dict[int, EnvFile]) -> dict[str, str]:
+    """Current env_config"""
     runner_index = request.config.getoption("--runner_index")
     return ENV_FILES[runner_index].config
 
 
 @pytest.fixture(scope="session")
 def URL(dotenv_config: dict[str, str]) -> BaseUrl:
+    """BaseUrl object based on current DOMAIN"""
     return BaseUrl(netloc=dotenv_config["DOMAIN"])