| name | the name of the repository. Try to respect spelling for common repositories (ibiblio, ivyrep, ...) | Yes | 
    | url | an url pointing to the repository. | Yes | 
    | pattern | an ivy pattern to find modules on this repository | No, but it's recommended to indicate it. | 
    | ivys | true if ivy file can be found on this repository | No, defaults to false. | 
    | artifacts | true if module artifacts can be found on this repository | No, defaults to false. |