{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Expr",
  "title": "Expr",
  "type": "object",
  "description": "Represents a textual expression in the Common Expression Language (CEL) syntax. Used for conditional access policies.",
  "properties": {
    "expression": {
      "type": "string",
      "description": "The CEL expression string. Example: request.time < timestamp(\"2024-01-01T00:00:00Z\").",
      "example": "example_value"
    },
    "title": {
      "type": "string",
      "description": "An optional title for the expression.",
      "example": "Example Title"
    },
    "description": {
      "type": "string",
      "description": "An optional description of the expression.",
      "example": "A sample description."
    },
    "location": {
      "type": "string",
      "description": "An optional string indicating the location of the expression for error reporting.",
      "example": "example_value"
    }
  }
}