Error: Unrecognized format used: "int32"

[FedericoDesio]

Hi all,
i'm trying to generate API tests dynamically by parsing the Swagger ("swagger": "2.0"), i get this error:

Error: Unrecognized format used: "int32"

this is the portion of the schema

					"items": {
						"type": "object",
						"properties": {
							"XXXId": {
								"format": "int32",
								"description": "The id of XXX this item belongs to",
								"type": "integer"
							},

I tried to replace "int32" with "integer" same error.

Thank you in advance,
Federico