diff --git a/ast_1.py b/ast_1.py
index 330e75d..63978c5 100644
--- a/ast_1.py
+++ b/ast_1.py
@@ -6,7 +6,23 @@
 from typing import Generic, Callable, Self, Type, TypeVar, Union
 
 from common import TT, PrimitiveTypes, bcolors, operators
-from ast_exprs import AstirExpr, ShuntingYardAlgorithmResults, Identifier, Literal, PrimitiveType, Reference, AstirTuple, SymbolTable, Parameter, Symbol, Parenthesized, Lambda, Assignment, Application, check_is_allowed
+from ast_exprs import (
+    AstirExpr,
+    ShuntingYardAlgorithmResults,
+    Identifier,
+    Literal,
+    PrimitiveType,
+    Reference,
+    AstirTuple,
+    SymbolTable,
+    Parameter,
+    Symbol,
+    Parenthesized,
+    Lambda,
+    Assignment,
+    Application,
+    check_is_allowed,
+)
 
 
 class Token:
@@ -22,6 +38,7 @@ def __init__(
     def __repr__(self) -> str:
         return f"{self.ty} ({self.val})"
 
+
 def get_op(possible_op: Token | None) -> tuple[str, dict[str, int]] | None:
     if (
         possible_op is None
@@ -32,6 +49,7 @@ def get_op(possible_op: Token | None) -> tuple[str, dict[str, int]] | None:
     op = operators[possible_op.ty.value]
     return (possible_op.ty.value, op)
 
+
 def is_valid_ident(c: str) -> bool:
     return c.isalnum() or c == "_"
 
@@ -196,7 +214,7 @@ def identifier_check(c: str | None, rest: str) -> bool:
 class Parser(Cursor):
     def __init__(self, input: list[Token]) -> None:
         super().__init__(input)
-        self.results: list['AstirExpr'] = []
+        self.results: list["AstirExpr"] = []
         global_symbols = SymbolTable(0)
         # TODO: we are waiting for typedef!
         global_symbols.insert("int", PrimitiveType(PrimitiveTypes.INT))
@@ -313,7 +331,7 @@ def parse(self) -> AstirExpr | None:
                 #     paren = self.parse()
                 #     # raise Exception(f"Enum value(?): {c.val} -> {paren}")
                 #     result = DataVariantWithInnerValue(Identifier(c.val), paren)
-                else:   
+                else:
                     self.advance()
                     for_assignment = False
                     if (
@@ -352,7 +370,9 @@ def parse(self) -> AstirExpr | None:
             elif len(the_between) == 1:
                 # Init Parenthesized with an expression (the_between[0])
                 # to do exactly what it says... for example (\ :: int ...)
-                result = Parenthesized(PrimitiveType(PrimitiveTypes.UNIT), the_between[0])
+                result = Parenthesized(
+                    PrimitiveType(PrimitiveTypes.UNIT), the_between[0]
+                )
             elif len(the_between) > 1 and has_comma:
                 # Handle tuples
                 result = AstirTuple(the_between)
@@ -455,7 +475,8 @@ def parse(self) -> AstirExpr | None:
                         possible_arg = self.parse()
                         if possible_arg is None:
                             raise Exception("Failed to parse")
-                        if possible_arg.ty.ty != type_symbol.val.ty:
+
+                        if possible_arg.ty != type_symbol.val.ty:
                             raise Exception(
                                 f"{bcolors.FAIL}{bcolors.BOLD}Type mismatch{bcolors.ENDC}"
                             )
diff --git a/ast_exprs.py b/ast_exprs.py
index 8b3210b..1e3565c 100644
--- a/ast_exprs.py
+++ b/ast_exprs.py
@@ -6,6 +6,7 @@ class AstirExpr(ABC):
     def __init__(self, ty: Union['PrimitiveTypes', 'AstirExpr']):
         super().__init__()
         self.ty = ty
+        
 
 def check_is_allowed(AstirExpr: AstirExpr | None) -> bool:
     allowed = AstirExpr is not None or (
@@ -83,6 +84,9 @@ def __init__(
         
         self.parameters=parameters
 
+    def __repr__(self):
+        return f"LambdaDef(Parameters={self.parameters})"
+
 
 class Lambda(AstirExpr):
     def __init__(self, parameters: SymbolTable, body: AstirExpr):
@@ -91,6 +95,8 @@ def __init__(self, parameters: SymbolTable, body: AstirExpr):
         self.definition = lambda_def
         self.body = body
 
+    def __repr__(self):
+        return f"Lambda(Def={self.definition}, Body={self.body})"
 
 class Parenthesized(AstirExpr):
     def __init__(self, ty: AstirExpr | PrimitiveTypes, inner: AstirExpr | None = None) -> None: