func (s *JSONStore) Start(ctx context.Context) error {
	return nil
}
Start does nothing.
package sio
import (
	"context"
	"encoding/json"
	"io/ioutil"
	"sync"
	"github.com/Comcast/sheens/crew"
)
type JSONStore struct {
	StateOutputFilename string
	StateInputFilename string
	state map[string]*crew.Machine
	WG sync.WaitGroup
}
func NewJSONStore() *JSONStore {
	return &JSONStore{}
}