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[Filter] klay_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs).

To check if the state has changed, call klay_getFilterChanges.
To obtain all logs matching the filter created by klay_newFilter, call klay_getFilterLogs.

A note on specifying topic filters: Topics are order-dependent. A transaction with a log with topics [A, B] will be matched by the following topic filters:

[] "anything"
[A] "A in first position (and anything after)"
[null, B] "anything in first position AND B in second position (and anything after)"
[A, B] "A in first position AND B in second position (and anything after)"
[[A, B], [A, B]] "(A OR B) in first position AND (A OR B) in second position (and anything after)"

NOTE: In versions earlier than Kaia v1.7.0, only integer block number, the string "earliest" and "latest" are available.

JSONRPC: klay_newFilter

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Returns a filter id

[Filter] klay_newFilter

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