RJSVM/node_modules/ripple-lib/dist/npm/common/schemas/objects/memos.json

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "memos",
  "link": "transaction-memos",
  "description": "Array of memos to attach to the transaction.",
  "type": "array",
  "items": {
    "$ref": "memo"
  }
}