typed.go
func (t Typed) BoolOr(key string, d bool) bool {
	if value, exists := t.BoolIf(key); exists {
		return value
	}
	return d
}
func (t Typed) BoolOr(key string, d bool) bool {
	if value, exists := t.BoolIf(key); exists {
		return value
	}
	return d
}
func ( t Typed ) BoolOr ( key string , d bool ) bool { if value , exists := t . BoolIf ( key ) ; exists { return value } return d }
// Returns a boolean at the key, or the specified
// value if it doesn't exist or isn't a bool
Returns a boolean at the key or the specified value if it doesn t exist or isn t a bool