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import { crypto } from "https://deno.land/std@0.173.0/crypto/mod.ts";import {  encode,} from "https://deno.land/std@0.173.0/encoding/base64.ts";
export class hash {  static async sha256(str: string): Promise<string> {    const encoder = new TextEncoder();    const data = encoder.encode(str);    const hash = await crypto.subtle.digest("SHA-256", data);    return encode(hash);  }  static async sha512(str: string): Promise<string> {    const encoder = new TextEncoder();    const data = encoder.encode(str);    const hash = await crypto.subtle.digest("SHA-512", data);    return encode(hash);  }  static async sha384(str: string): Promise<string> {    const encoder = new TextEncoder();    const data = encoder.encode(str);    const hash = await crypto.subtle.digest("SHA-384", data);    return encode(hash);  }  static async sha3_256(str: string): Promise<string> {    const encoder = new TextEncoder();    const data = encoder.encode(str);    const hash = await crypto.subtle.digest("SHA3-256", data);    return encode(hash);  }  static async sha3_512(str: string): Promise<string> {    const encoder = new TextEncoder();    const data = encoder.encode(str);    const hash = await crypto.subtle.digest("SHA3-512", data);    return encode(hash);  }}