From d4159b49a47bc8eae7ca62e162db51aba7c2e814 Mon Sep 17 00:00:00 2001
From: Andriy Lytvyn <litwisha@gmail.com>
Date: Mon, 28 Sep 2020 17:42:33 +0300
Subject: [PATCH] docstrings

---
 business_rules/engine.py     | 2 +-
 business_rules/exceptions.py | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/business_rules/engine.py b/business_rules/engine.py
index 775d990e..b2cda603 100644
--- a/business_rules/engine.py
+++ b/business_rules/engine.py
@@ -88,7 +88,7 @@ async def check_condition(condition, defined_variables):
     try:
         operator_type = await _get_variable_value(defined_variables, name)
     except MissingVariableException:
-        """"""
+        """If variable value is missing, than corresponding condition is false"""
         return False
 
     if 'value_is_variable' in condition and condition['value_is_variable']:
diff --git a/business_rules/exceptions.py b/business_rules/exceptions.py
index 0727e5b1..e96aa9da 100644
--- a/business_rules/exceptions.py
+++ b/business_rules/exceptions.py
@@ -1,4 +1,7 @@
 
 
 class MissingVariableException(BaseException):
-    """If variable is missing("""
\ No newline at end of file
+    """
+    Variable can raise this exception, if variable value is missing.
+    If exception raised, than corresponding exception is false.
+    """
\ No newline at end of file