{
  "linear": {},
  "ease": {},
  "ease-in": {},
  "ease-out": {},
  "ease-in-out": {},
  "cubic-bezier": {
    "parameters": [
      "<number [0, 1]>",
      "<number>",
      "<number [0, 1]>",
      "<number>"
    ]
  },
  "step-start": {},
  "step-end": {},
  "steps": {
    "parameters": [
      "<integer>",
      "<step-position>?"
    ]
  }
}