how to import:

const sha2_512 = require('simple-js-sha2-512')

hashing:

sha2_512('hello') // 9b71d224bd62f3785d96d46ad3ea3d73319bfbc2890caadae2dff72519673ca72323c3d99ba5c11d7c7acc6e14b8c5da0c4663475c2e5c3adef46f73bcdec043

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