Extract data from a file

{
  "name": "Invoice",
  "description": "Schema for extracting invoice details",
  "fields": [
    {
      "name": "invoice_number",
      "description": "The unique identifier for the invoice",
      "type": "string"
    },
    {
      "name": "issue_date",
      "description": "The date when the invoice was issued",
      "type": "date"
    },
    {
      "name": "customer",
      "description": "Customer information",
      "type": "object",
      "fields": [
        {
          "name": "name",
          "description": "Customer's full name",
          "type": "string"
        },
        {
          "name": "email",
          "description": "Customer's email address",
          "type": "email"
        }
      ]
    },
    {
      "name": "line_items",
      "description": "List of items in the invoice",
      "type": "array",
      "fields": [
        {
          "name": "description",
          "description": "Item description",
          "type": "string"
        },
        {
          "name": "amount",
          "description": "Item cost",
          "type": "number"
        }
      ]
    }
  ]
}