There seems to be some confusion on what document you need. Please select the proper document to continue with:
- Python v2.7.2 : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.5.2 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 3.6.3 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 2.7.10 : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.4.4 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 2.6 : base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.2 : 18.6. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.6.4 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 2.7.13 : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- IronPython : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.7 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 3.3 : 19.6. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.5 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 2.7 : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.2.1 : 18.6. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.5.1 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 3.6.1 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Golang : src/pkg/encoding/base64/base64.go - The Go Programming Language
- Python 3.6.4 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 3.7 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Python 3.4 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- Microchip TCP/IP Stack : Base64Encode Function
- Microchip TCP/IP Stack : Base64Decode Function
- Python v2.7.1 : 18.12. base64 — RFC 3548: Base16, Base32, Base64 Data Encodings
- Python 3.7.3 : base64 — Base16, Base32, Base64, Base85 Data Encodings
- fastjson : Base64 (fastjson 1.1.26 API)
- fastjson : Uses of Class com.alibaba.fastjson.util.Base64 (fastjson 1.1.26 API)
- Python 3.6.8 : 19.6. base64 — Base16, Base32, Base64, Base85 Data Encodings
- LUA : base64dec
- LUA : base64enc