Deprecated warning for Buffer() method

[mohalepooja]

As way of using Buffer has changed, we need to update usage of Buffer method in this package. We are facing below warning

[DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

It would be helpful if this request is handled urgently.