# Async Function: WispSendPkt
Sends a raw binary packet over the Wisp connection.
- `ws_ctx` - mutable reference to the current [`WispContext`](./WispContext.md).
- `send_buf` - byte slice containing the packet to send.
**Returns:**
`Result<(), Box<dyn std::error::Error>>`
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See also:
- [`WispReadPkt`](./WispReadPkt.md)
- [`WispContext`](./WispContext.md)