Getting TextureAtlasSprite/s from Block

I got a custom type of block and in that block i need to check the textures that come from the model.json

So for example from the crafting_table.json i would need to get the texture "minecraft:block/crafting_table_top" from the texture "up":

{
  "parent": "minecraft:block/cube",
  "textures": {
    "down": "minecraft:block/oak_planks",
    "east": "minecraft:block/crafting_table_side",
    "north": "minecraft:block/crafting_table_front",
    "particle": "minecraft:block/crafting_table_front",
    "south": "minecraft:block/crafting_table_side",
    "up": "minecraft:block/crafting_table_top",
    "west": "minecraft:block/crafting_table_front"
  }
}

Is this possible to get inside the block?