How to get a configured client in a Sanity custom tool.

import { UnpublishIcon } from '@sanity/icons'
import { Card, Text } from '@sanity/ui'

const xlsxImport = () => {

    return {
        title: 'XLSX Importer',
        name: 'xlsx-import', // localhost:3333/my-custom-tool
        icon: UnpublishIcon,
        component: (props: any, other:any) => {
            console.log(props, other)
            return <Card padding={4} >
                <Text>Import XLSX</ Text >
            </Card>
        },
    }
}

export default xlsxImport

export default defineConfig({
  basePath: '/studio',
  projectId,
  dataset,
  schema,
  plugins: [
    deskTool({
      structure: myStructure
    }),
    visionTool({defaultApiVersion: apiVersion}),
  ],
  tools: [
    xlsxImport()
  ]
})