Method check_valid_utf8

parquet/src/arrow/buffer/offset_buffer.rs:128–130

Validates that `&self.values[start_offset..]` is a valid UTF-8 sequence This MUST be combined with validating that the offsets start on a character boundary, otherwise it would be possible for the values array to be a valid UTF-8 sequence, but not the individual string slices it contains [`Self::try_push`] can perform this validation check on insertion

(&self, start_offset: usize)

    ///
    /// [`Self::try_push`] can perform this validation check on insertion
    pub fn check_valid_utf8(&self, start_offset: usize) -> Result<()> {
        check_valid_utf8(&self.values.as_slice()[start_offset..])
    }

    /// Converts this into an [`ArrayRef`] with the provided `data_type` and `null_buffer`
    pub fn into_array(self, null_buffer: Option<Buffer>, data_type: ArrowType) -> ArrayRef {