Returns an iterator to the first chunk of the Cord.
Generally, prefer using Cord::Chunks() within a range-based for loop for iterating over the chunks of a Cord. This method may be useful for getting a ChunkIterator where range-based for-loops are not useful.
Example:
absl::Cord::ChunkIterator FindAsChunk(const absl::Cord& c, absl::string_view s) { return std::find(c.chunk_begin(), c.chunk_end(), s); }
An iterator to the first chunk of the Cord.