func FromContext(ctx context.Context) (*ContextWrapper, bool) {
	cw, ok := ctx.Value(contextKey).(*ContextWrapper)
	return cw, ok
}
FromContext returns the context wrapper stored in ctx
package iopipe
import (
	"context"
	"github.com/aws/aws-lambda-go/lambdacontext"
)
type ContextWrapper struct {
	*lambdacontext.LambdaContext
	IOpipe *HandlerWrapper
}
type key struct{}
var contextKey = &key{}
func NewContext(parent context.Context, cw *ContextWrapper) context.Context {
	return context.WithValue(parent, contextKey, cw)
}