Template:Image exists

{	"params": { "file": { "description": "The file name of the image", "type": "wiki-file-name", "required": true },		"width": { "description": "The width of the image" },		"caption": { "description": "The caption for the image", "type": "string" },		"mcat": { "label": "category if missing", "description": "The category to add the page to if the file does not exist", "example": "Articles with missing images", "type": "wiki-page-name", "default": "Articles with missing images" }	},	"paramOrder": [ "file", "caption", "width", "mcat" ],	"description": "Checks if an image exists, and either displays the image (if it exists) or a placeholder (if it doesn't)." }