diff --git a/lib/substitutions/include/substitutions/operator_pattern.h b/lib/substitutions/include/substitutions/operator_pattern.h
index 94e77cc51b..078a66a26d 100644
--- a/lib/substitutions/include/substitutions/operator_pattern.h
+++ b/lib/substitutions/include/substitutions/operator_pattern.h
@@ -82,6 +82,7 @@ enum class OperatorAttributeKey {
   NUM_INPUTS
 };
 
+
 /**
  * @brief OperatorAttributeValue is a representation of the concrete value of an attribute of an Operator.
  * The OperatorAttributeValue is evaluated from AttributeExpr. The datatype of the value corresponds to the 
@@ -121,7 +122,6 @@ using OperatorAttributeConstraint =
 using OperatorPattern =
     AttributePattern<OperatorAttributeKey, OperatorAttributeValue>;
 
-
 /**
  * @brief Given a specific attribute of an Operator, evaluate the expression of the attribute 
  * using one of the three methods: direct value, list index access, or list size and return the
diff --git a/lib/substitutions/include/substitutions/output_graph.h b/lib/substitutions/include/substitutions/output_graph.h
index 72bce4f9af..2d1651dc66 100644
--- a/lib/substitutions/include/substitutions/output_graph.h
+++ b/lib/substitutions/include/substitutions/output_graph.h
@@ -27,6 +27,7 @@ struct AttrConstant {
   OperatorAttributeValue value;
 };
 
+
 /**
  * @brief OperatorAttributeExpr is a access to the attribute of an operator and can be
  * evaluated to a concrete value. OperatorAttributeExpr is used at substitution phase. 
diff --git a/lib/substitutions/include/substitutions/parallel_tensor_pattern.h b/lib/substitutions/include/substitutions/parallel_tensor_pattern.h
index 786f2d2ff4..612486fe09 100644
--- a/lib/substitutions/include/substitutions/parallel_tensor_pattern.h
+++ b/lib/substitutions/include/substitutions/parallel_tensor_pattern.h
@@ -14,6 +14,7 @@ namespace FlexFlow {
  */
 enum class TensorAttributeKey { DIM_SIZES, DIM_DEGREES };
 
+
 /**
  * @brief DIM_SIZES and DIM_DEGREES are represented by 
  * a vector of ints that is listed as corresponding dimension
@@ -34,6 +35,7 @@ using TensorAttributeConstraint =
 using ParallelTensorPattern =
     AttributePattern<TensorAttributeKey, TensorAttributeValue>;
 
+
 /**
  * @brief evaluate_attribute_expr evaluates the attribute expression for a given ParallelTensor
  * the ParallelTensor parameter is named tensor_shape because the numerical value will only be used