pub const NONE: u32 = 0;Expand description
No format (non-image tensor), or a format this build predates. Not a
crate::PixelFormat variant – every code 1..=11 below is one of
those, generated by the same ef_vocabulary! declaration as
crate::PixelFormat::code; 0 is a sentinel this module alone
defines, since “no format” has no corresponding Rust variant.