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'use strict';
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const isUtf8 = require('is-utf8');
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module.exports = x => {
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if (!Buffer.isBuffer(x)) {
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throw new TypeError('Expected a Buffer, got ' + typeof x);
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}
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if (x[0] === 0xEF && x[1] === 0xBB && x[2] === 0xBF && isUtf8(x)) {
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return x.slice(3);
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}
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return x;
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};
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