Function read_varint_le 

pub fn read_varint_le<R: Read>(reader: &mut R) -> Result<(u64, usize)>

Reads a variable-length integer (VarInt) encoded in little-endian format from a source implementing the Read trait.

The VarInt encoding uses the most significant bit (MSB) of each byte as a continuation bit. The continuation bit being 1 indicates that there are following bytes. The actual integer value is encoded in the remaining 7 bits of each byte.

Parameters

• reader: A source implementing the Read trait (e.g., file, network stream).

Returns

Returns a Result containing either:

• A tuple of the decoded u64 value and the number of bytes read (offset).
• An io::Error in case of any reading error or if the VarInt is too long.