der.ts:6 Uncaught ReferenceError: Buffer is not defined

I am facing this issue when i used
`import {
encrypt
} from '@metamask/eth-sig-util';`
i am facing this error
i have also tried
`import {Buffer} from 'buffer'`;
Can someone please guide me here?


`

Start by reproducing the reported `Buffer is not defined` error from the `@metamask/eth-sig-util` import and inspect `der.ts:6`. Check the consumer environment and package compatibility, then define done as importing and using `encrypt` without the runtime error in the affected setup.

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