How to use the @delon/util.copy function in @delon/util

copyVar() {
    const vars = this.genVars();
    const copyContent = Object.keys(vars)
      .map(key => `${key}: ${vars[key]};`)
      .join('\n');
    copy(copyContent);
    this.msg.success('Copy success');
  }
}

onCopy(value: string) {
    copy(value).then(() => {
      this.msg.success(this.i18n.fanyi('app.demo.copied'));
      this.copied = true;
      setTimeout(() => (this.copied = false), 1000);
    });
  }

onCopy(value: string) {
    copy(value).then(() => this.msg.success(this.i18n.fanyi('app.demo.copied')));
  }

onCopy(value: string) {
    copy(value).then(() =>
      this.msg.success(this.i18n.fanyi('app.demo.copied')),
    );
  }
}

copyVar() {
    const vars = this.genVars();
    const copyContent = Object.keys(vars)
      .map(key => `${key}: ${vars[key]};`)
      .join('\n');
    copy(copyContent);
    this.msg.success('Copy success');
  }
}

onCopy(value: string) {
    copy(value).then(() =>
      this.msg.success(this.i18n.fanyi('app.demo.copied')),
    );
  }

onCopy() {
    copy(this.schema).then(() => this.msg.success(this.i18n.fanyi('app.demo.copied')));
  }

onCopy(value: string) {
    copy(value).then(() => this.msg.success(this.i18n.fanyi('app.demo.copied')));
  }

onCopy(value: string) {
        copy(value).then(() => this.msg.success(this.i18n.fanyi('app.demo.copied')));
    }

onCopy() {
    copy(this.schema).then(() =>
      this.msg.success(this.i18n.fanyi('app.demo.copied')),
    );
  }