Add kwargs to the GasPrice wrapper to fix issue with instance creating in BaseWrapper

Author: VadimGrznk

Readme.md

@@ -77,7 +77,7 @@ If you would like to pay fees in cUSD, set the gas price manually:
 ```python
 stable_token = kit.base_wrapper.create_and_get_contract_by_name('StableToken')
 gas_price_contract = kit.base_wrapper.create_and_get_contract_by_name('GasPriceMinimum')
-gas_price_minimum = gas_price_contract.get_gas_price_minimum(stable.address)
+gas_price_minimum = gas_price_contract.get_gas_price_minimum(stable_token.address)
 gas_price = gas_price_minimum * 1.3 # Wiggle room if gas price minimum changes before tx is sent
 kit.wallet_fee_currency = stable_token.address # Default to paying fees in cUSD
 kit.wallet_gas_price = gas_price
@@ -167,7 +167,7 @@ from celo_sdk.kit import Kit
 from celo_sdk.celo_account.messages import encode_defunct
 
 kit = Kit('https://alfajores-forno.celo-testnet.org')
-message = self.kit.w3.soliditySha3(['address'], [signer]).hex()  # For example we want to sign someones address
+message = kit.w3.soliditySha3(['address'], [signer]).hex()  # For example we want to sign someones address
 message = encode_defunct(hexstr=message)
-signature = self.kit.wallet.active_account.sign_message(message)
+signature = kit.wallet.active_account.sign_message(message)
 ```

celo_sdk/contracts/GasPriceMinimumWrapper.py

@@ -18,7 +18,7 @@ class GasPriceMinimum:
             Wallet object to sign transactions
     """
 
-    def __init__(self, web3: Web3, address: str, abi: list, wallet: 'Wallet' = None):
+    def __init__(self, web3: Web3, address: str, abi: list, wallet: 'Wallet' = None, **kwargs):
         self.web3 = web3
         self.address = address
         self._contract = self.web3.eth.contract(self.address, abi=abi)

celo_sdk/contracts/base_wrapper.py

@@ -86,7 +86,7 @@ def create_contract(self, contract_name: str, contract_address: str, abi: list):
                 f"celo_sdk.contracts.{contract_name}Wrapper")
             contract_obj = getattr(contract_module, contract_name)
             contract = contract_obj(
-                self.web3, self.registry, contract_address, abi, self.wallet)
+                web3=self.web3, registry=self.registry, address=contract_address, abi=abi, wallet=self.wallet)
 
             self.contracts[contract_name] = contract
         except ModuleNotFoundError: