Method send

src/pgtest/src/lib.rs:142–147

(&mut self, f: F)

    }

    fn send<F: FnOnce(&mut BytesMut)>(&mut self, f: F) -> anyhow::Result<()> {
        self.send_buf.clear();
        f(&mut self.send_buf);
        self.stream.write_all(&self.send_buf)?;
        Ok(())
    }
    fn until(
        &mut self,
        until: Vec<&str>,