CallToFilter will match calls where *BOTH* * the contract address (TO) is one in the provided addresses -- OR addresses list is empty -- * the method signature (in 4-bytes format) is one of the provided signatures -- OR signatures is empty -- a CallToFilter with both empty addresses and signatures lists is invalid and will fail.

LogFilter will match calls where *BOTH* * the contract address that emits the log is one in the provided addresses -- OR addresses list is empty -- * the event signature (topic.0) is one of the provided event_signatures -- OR event_signatures is empty -- a LogFilter with both empty addresses and event_signatures lists is invalid and will fail.

MultiCallToFilter concatenates the results of each CallToFilter (inclusive OR).

MultiLogFilter concatenates the results of each LogFilter (inclusive OR).