ode></dt><dd><p><var>Size</var> must be a positive exact integer. <var>K</var> must be a valid index of <var>blob</var>; so must the indices {<var>k</var>, ..., <var>k</var> + <var>size</var> - 1}. <var>Endianness</var> must be an endianness object. </p><p><code>Blob-uint-ref</code> retrieves the exact integer corresponding to the unsigned representation of size <var>size</var> and specified by <var>endianness</var> at indices {<var>k</var>, ..., <var>k</var> + <var>size</var> - 1}.</p><p><code>Blob-sint-re