How to use the @accounts/server.generateRandomToken function in @accounts/server

if (this.server.options.ambiguousErrorMessages) {
        return;
      }
      throw new Error(this.options.errors.userNotFound);
    }

    // Do not send an email if the address is already verified
    const emailRecord = find(
      user.emails,
      (email: EmailRecord) => email.address.toLowerCase() === address.toLocaleLowerCase()
    );
    if (!emailRecord || emailRecord.verified) {
      return;
    }

    const token = generateRandomToken();
    await this.db.addEmailVerificationToken(user.id, address, token);

    const resetPasswordMail = this.server.prepareMail(
      address,
      token,
      this.server.sanitizeUser(user),
      'verify-email',
      this.server.options.emailTemplates.verifyEmail,
      this.server.options.emailTemplates.from
    );

    await this.server.options.sendMail(resetPasswordMail);
  }

public async sendResetPasswordEmail(address: string): Promise {
    if (!address || !isString(address)) {
      throw new Error(this.options.errors.invalidEmail);
    }

    const user = await this.db.findUserByEmail(address);
    if (!user) {
      // To prevent user enumeration we fail silently
      if (this.server.options.ambiguousErrorMessages) {
        return;
      }
      throw new Error(this.options.errors.userNotFound);
    }
    const token = generateRandomToken();
    await this.db.addResetPasswordToken(user.id, address, token, 'reset');

    const resetPasswordMail = this.server.prepareMail(
      address,
      token,
      this.server.sanitizeUser(user),
      'reset-password',
      this.server.options.emailTemplates.resetPassword,
      this.server.options.emailTemplates.from
    );

    await this.server.options.sendMail(resetPasswordMail);
  }

public async sendEnrollmentEmail(address: string): Promise {
    if (!address || !isString(address)) {
      throw new Error(this.options.errors.invalidEmail);
    }

    const user = await this.db.findUserByEmail(address);
    if (!user) {
      throw new Error(this.options.errors.userNotFound);
    }
    const token = generateRandomToken();
    await this.db.addResetPasswordToken(user.id, address, token, 'enroll');

    const enrollmentMail = this.server.prepareMail(
      address,
      token,
      this.server.sanitizeUser(user),
      'enroll-account',
      this.server.options.emailTemplates.enrollAccount,
      this.server.options.emailTemplates.from
    );

    await this.server.options.sendMail(enrollmentMail);
  }