filterSignatures method
Removes signatures that the predicate
returns false for. This is used to
remove invalidated signatures.
Implementation
@override
P2PKHInput filterSignatures(bool Function(InputSignature insig) predicate)
=> insig == null || predicate(insig!) ? this : P2PKHInput(
prevOut: prevOut,
publicKey: publicKey,
insig: null,
sequence: sequence,
);