Minecraft:Blockstates definition/format/models

- Template:Nbt: Contains the properties of a model, if more than one model is used for the same variant. All specified models alternate in the game.
  - Template:Nbt: Optional. Default: 1. If more than one model is used for the same variant, the probability is calculated by dividing the individual model's weight by the sum of the weights of all models. (For example, if three models are used with weights 1, 1, and 2, then their combined weight would be 4 (1+1+2). The probability of each model being used would then be determined by dividing each weight by 4: 1/4, 1/4 and 2/4, or 25%, 25% and 50%, respectively.