run black

slither/slithir/variables/reference.py

@@ -7,8 +7,8 @@ from slither.core.variables.variable import Variable
 if TYPE_CHECKING:
     from slither.core.cfg.node import Node
 
-class ReferenceVariable(ChildNode, Variable):
 
+class ReferenceVariable(ChildNode, Variable):
     def __init__(self, node: "Node", index=None):
         super().__init__()
         if index is None:

slither/slithir/variables/temporary.py

@@ -6,8 +6,8 @@ from slither.core.variables.variable import Variable
 if TYPE_CHECKING:
     from slither.core.cfg.node import Node
 
-class TemporaryVariable(ChildNode, Variable):
 
+class TemporaryVariable(ChildNode, Variable):
     def __init__(self, node: "Node", index=None):
         super().__init__()
         if index is None:

slither/slithir/variables/tuple.py

@@ -8,7 +8,6 @@ if TYPE_CHECKING:
 
 
 class TupleVariable(ChildNode, SlithIRVariable):
-
     def __init__(self, node: "Node", index=None):
         super().__init__()
         if index is None: