Why { ...arg} are used inside the components of react -daisyUi

Why {...arg} are passed inside the daisyUi component. All components have internal {...arg} . But what does it do.

  return <Button {...args} />

Another one

<Dropdown {...args}>
    <Dropdown.Toggle>Click</Dropdown.Toggle>
    <Dropdown.Menu className="w-52">
    <Dropdown.Item>Item 1</Dropdown.Item>
    <Dropdown.Item>Item 2</Dropdown.Item>
    </Dropdown.Menu>
</Dropdown>

  return <Swap {...args} />