This is an unofficial extension containing snippets for these Tampermonkey functions:
GM_addStyle
GM_deleteValue
GM_listValues
GM_addValueChangeListener)
GM_removeValueChangeListener
GM_setValue
GM_getValue
GM_log
GM_getResourceText
GM_getResourceURL
GM_registerMenuCommand
GM_unregisterMenuCommand
GM_openInTab
GM_xmlhttpRequest
GM_download
GM_getTab
GM_saveTab
GM_getTabs
GM_notification
GM_setClipboard
Function descriptions are from the official documentation https://www.tampermonkey.net/documentation.php