Optional
is_True, if the link preview is disabled
Optional
prefer_True, if the media in the link preview is supposed to be enlarged; ignored if the URL isn't explicitly specified or media size change isn't supported for the preview
Optional
prefer_True, if the media in the link preview is supposed to be shrunk; ignored if the URL isn't explicitly specified or media size change isn't supported for the preview
Optional
show_True, if the link preview must be shown above the message text; otherwise, the link preview will be shown below the message text
Optional
urlURL to use for the link preview. If empty, then the first URL found in the message text will be used
Describes the options used for link preview generation.