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      <nz-cascader *nzSpaceItem [nzOptions]="options" nzVariant="outlined" />
      <nz-cascader *nzSpaceItem [nzOptions]="options" nzVariant="filled" />
      <nz-cascader *nzSpaceItem [nzOptions]="options" nzVariant="borderless" />
      <nz-cascader *nzSpaceItem [nzOptions]="options" nzVariant="underlined" />
    </nz-space>
  