diff --git a/uniswap/types.py b/uniswap/types.py
index acc5105..beb65b7 100644
--- a/uniswap/types.py
+++ b/uniswap/types.py
@@ -1,6 +1,7 @@
 from typing import Union
 from dataclasses import dataclass
 from eth_typing.evm import Address, ChecksumAddress
+from typing import List, Tuple
 
 
 AddressLike = Union[Address, ChecksumAddress]
@@ -44,7 +45,7 @@ class UniswapV4_PathKey:
     # Ticks that involve positions must be a multiple of tick spacing
     tickSpacing : int
     # The hooks of the pool
-    hooks : list[Address]
+    hooks : List[Address]
 
-    def __repr__(self) -> (Address, Address, int, int, list[Address]):
+    def __repr__(self) -> Tuple(Address, Address, int, int, List[Address]):
         return (self.currency0, self.currency1, self.fee, self.tickSpacing, self.hooks)
\ No newline at end of file
diff --git a/uniswap/uniswap4.py b/uniswap/uniswap4.py
index 1278221..24a6831 100644
--- a/uniswap/uniswap4.py
+++ b/uniswap/uniswap4.py
@@ -130,7 +130,7 @@ def get_quote_exact_input_single(
         sqrt_price_limit_x96: int = 0,
         zero_for_one: bool = True,
         hooks: Union[AddressLike, str, None] = NOHOOK_ADDRESS,
-    ):
+    ) -> Any:
         """
         :if `zero_to_one` is true: given `qty` amount of the input `token0`, returns the maximum output amount of output `token1`.
         :if `zero_to_one` is false: returns the minimum amount of `token0` required to buy `qty` amount of `token1`.
@@ -173,7 +173,7 @@ def get_quote_exact_output_single(
         sqrt_price_limit_x96: int = 0,
         zero_for_one: bool = True,
         hooks: Union[AddressLike, str, None] = NOHOOK_ADDRESS,
-    ):
+    ) -> Any:
         """
         :if `zero_to_one` is true: given `qty` amount of the input `token0`, returns the maximum output amount of output `token1`.
         :if `zero_to_one` is false: returns the minimum amount of `token0` required to buy `qty` amount of `token1`.
@@ -210,14 +210,11 @@ def get_quote_exact_input(
         currency: AddressLike,  # input token
         qty: int,
         path : list[UniswapV4_PathKey],
-    ):
+    ) -> Any:
         """
         :path  is a swap route
         """
 
-        if currency0 == currency1:
-            raise ValueError
-
         quote_params = {
             "exactCurrency": currency,
             "path": path,
@@ -236,14 +233,11 @@ def get_quote_exact_output(
         currency: AddressLike,  # input token
         qty: int,
         path : list[UniswapV4_PathKey],
-    ):
+    ) -> Any:
         """
         :path  is a swap route
         """
 
-        if currency0 == currency1:
-            raise ValueError
-
         quote_params = {
             "exactCurrency": currency,
             "path": path,