first 4 are required, the rest are optional (and the code elsewhere checks if
nil to do default actions or nothing). the proc is called by my code but in a
proc which needs to be called by the software hosting the plugin created with
this libraryhttps://media.discordapp.net/attachments/371759389889003532/1236377
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2e76869fdb9e477f8af29c64d13f120027&https://media.discordapp.net/attachments/371
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