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Suppress web3 MaxListenersExceededWarning #1088
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Suggests this isn't obviously the result of negligence cleaning up emitters here. Also not proof of a lack of negligence, although have tried hard not to neglect this.
Also looks like it's not possible to manually set these limits on the PromiEvent since that part of the EventEmitter interface isn't exposed.
Warning looks like this:
(node:60858) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 data listeners added. Use emitter.setMaxListeners() to increase limitBelieve this will also need to be done for the console/develop but a different approach might be possible there. Mocha implements it's
--no-warningsoption by passing it as node flag to the process when they shell out.