{
  "$schema": "../rpc-schema-draft.json",
  "type": "object",
  "rpc": "askrene-age",
  "title": "Command for expiring information in a layer",
  "added": "v24.11",
  "description": [
    "The **askrene-age** RPC command tells askrene that information added to a layer by *askrene-inform-channel* and *askrene-bias-channel* beyond a certain age is less useful.  It currently completely forgets constraints and biases older than *cutoff*."
  ],
  "request": {
    "required": [
      "layer",
      "cutoff"
    ],
    "additionalProperties": false,
    "properties": {
      "layer": {
        "type": "string",
        "description": [
          "The name of the layer to apply this change to."
        ]
      },
      "cutoff": {
        "type": "u64",
        "description": [
          "The UNIX timestamp: constraints older than this will be forgotten."
        ]
      }
    }
  },
  "response": {
    "required": [
      "layer",
      "num_removed"
    ],
    "additionalProperties": false,
    "properties": {
      "layer": {
        "type": "string",
        "description": [
          "The *layer* parameter provided."
        ]
      },
      "num_removed": {
        "type": "u64",
        "description": [
          "The number of constraints removed from *layer*"
        ]
      }
    }
  },
  "see_also": [
    "lightning-getroutes(7)",
    "lightning-askrene-inform-channel(7)",
    "lightning-askrene-listlayers(7)"
  ],
  "author": [
    "Rusty Russell [rusty@rustcorp.com.au](mailto:rusty@rustcorp.com.au) is mainly responsible."
  ],
  "resources": [
    "Main web site: [https://github.com/ElementsProject/lightning](https://github.com/ElementsProject/lightning)"
  ],
  "examples": [
    {
      "request": {
        "id": "example:askrene-age#1",
        "method": "askrene-age",
        "params": {
          "layer": "test_layers",
          "cutoff": 1738000000
        }
      },
      "response": {
        "layer": "test_layers",
        "num_removed": 1
      }
    }
  ]
}
