Function default_read_to_string
pub fn default_read_to_string<R: Read + ?Sized>(r: &mut R, buf: &mut String, size_hint: Option<usize>) -> Result<usize>default_read_to_stringpub fn default_read_to_string<R: Read + ?Sized>(r: &mut R, buf: &mut String, size_hint: Option<usize>) -> Result<usize>