get
Get function signature from Ethereum ABI json
Return
the function type signature, of the form "baz(int32,uint256)", null if the abi is invalid.
Parameters
abi
The function ABI json string, for example: {"inputs":[{"internalType":"bool","name":"arg1","type":"bool"}],"name":"fun1","outputs":[],"stateMutability":"nonpayable","type":"function"}