conn.go
func (c *Conn) SetDeadline(seconds int) {
	c.deadline = time.Second * time.Duration(seconds)
}
func (c *Conn) SetDeadline(seconds int) {
	c.deadline = time.Second * time.Duration(seconds)
}
// SetDeadline set the read/write deadlines for the connection, in seconds.
// Default value for read/write deadline is 300 seconds.