Constant MAX_PROVIDER_DOCUMENT_BYTES 

pub const MAX_PROVIDER_DOCUMENT_BYTES: usize = _ /* 268_435_456usize */;

Largest dotLottie package a provider reads, in bytes. A package is read whole, and only the files a source shows are unpacked from it: its animation, within MAX_LOTTIE_DOCUMENT_BYTES, and that animation’s images. A larger file is refused before it is read.