mwbot-ts - v1.2.7
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    Interface ApiResponseQueryMetaSiteinfoExtensions

    interface ApiResponseQueryMetaSiteinfoExtensions {
        author?: string;
        credits?: string;
        description?: string;
        descriptionmsg?: string;
        descriptionmsgparams?: unknown;
        license?: string;
        "license-name"?: string;
        name?: string;
        namemsg?: string;
        type: string;
        url?: string;
        "vcs-date"?: string;
        "vcs-system"?: string;
        "vcs-url"?: string;
        "vcs-version"?: string;
        version?: string;
    }
    Index

    Properties

    author?: string
    credits?: string
    description?: string
    descriptionmsg?: string
    descriptionmsgparams?: unknown

    Likely a string[], but [[mw:Manual:$wgExtensionCredits]] doesn't even document this property. From the source in ApiQuerySiteinfo.php, it appears like developers can pass a PHP array to descriptionmsg. In such cases, $ext['descriptionmsg'][0] is output as descriptionmsg, and $ext['descriptionmsg'][1+] as descriptionmsgparams. However, no extension in the Gerrit repositories currently appears to use an array.

    license?: string
    "license-name"?: string
    name?: string
    namemsg?: string
    type: string
    url?: string
    "vcs-date"?: string
    "vcs-system"?: string
    "vcs-url"?: string
    "vcs-version"?: string
    version?: string