What is the opening date of toy story midway mania at disney california adventur?

The available data only confirms the existence of the Toy Story franchise; it does not provide details about the opening date of the Toy Story Midway Mania attraction at Disney California Adventure. There is no record in the evidence indicating when, or if, the attraction opened. To obtain the exact opening date, official Disney park materials or reputable news releases should be consulted. Without such sources, any specific date would be speculative and therefore omitted. The lack of verifiable information means the answer cannot be confirmed at this time.