{ "rules_load_product_by_line_item" : {
    "LABEL" : "Load product by line item",
    "PLUGIN" : "rule",
    "OWNER" : "rules",
    "REQUIRES" : [ "rules" ],
    "USES VARIABLES" : {
      "line_item" : { "label" : "Line item", "type" : "commerce_line_item" },
      "product" : { "label" : "Product", "type" : "commerce_product", "parameter" : false }
    },
    "IF" : [
      { "entity_has_field" : { "entity" : [ "line-item" ], "field" : "commerce_product" } }
    ],
    "DO" : [
      { "data_set" : { "data" : [ "product" ], "value" : [ "line-item:commerce-product" ] } }
    ],
    "PROVIDES VARIABLES" : [ "product" ]
  }
}