Function filesizeformat 

pub fn filesizeformat(
    bytes: u128,
    precision: u8,
) -> Result<FilesizeFormatFilter, Infallible>

Returns adequate string representation (in KB, ..) of number of bytes

Example

#[derive(Template)]
#[template(
    source = "Filesize: {{ size_in_bytes | filesizeformat }}.",
    ext = "html"
)]
struct Example {
    size_in_bytes: u64,
}

let tmpl = Example { size_in_bytes: 1_234_567 };
assert_eq!(tmpl.to_string(),  "Filesize: 1.23 MB.");