fn next(&mut self) -> Result<Frame, ParseError> {
        self
            .parts
            .next()
            .ok_or(ParseError::EndOfStream)
    }
/// Return the next entry. Array frames are arrays of frames, so the next
/// entry is a frame.
Return the next entry. Array frames are arrays of frames, so the next
entry is a frame.
Return the next entry . Array frames are arrays of frames so the next entry is a frame .
fn next(&mut self) -> Result<Frame, ParseError> {
        self
            .parts
            .next()
            .ok_or(ParseError::EndOfStream)
    }
fn next ( & mut self ) -> Result < Frame , ParseError > { self . parts . next ( ) . ok_or ( ParseError :: EndOfStream ) }
Return the next entry.
Return the next entry .
&mut self