minecraft-bedrock-json-schemas/source/resource/particles/components/emitter_lifetime_expression.json

{
  "$id": "blockception.minecraft.resource.particle.1.10.0.emitter_rate_manual",
  "type": "object",
  "title": "Emitter Rate Manual Component 1.10.0",
  "description": "UNDOCUMENTED.",
  "additionalProperties": false,
  "properties": {
    "activation_expression": {
      "$ref": "../../../molang/number.json",
      "description": "When the expression is non-zero, the emitter will emit particles. Evaluated every frame",
      "title": "Activation Expression"
    },
    "expiration_expression": {
      "$ref": "../../../molang/number.json",
      "description": "Emitter will expire if the expression is non-zero. Evaluated every frame",
      "title": "Expiration Expression"
    }
  }
}