class_docstr: Encoder driver interface. Each encoder is expected to support a specific
  format.
class_docstr_tok: ["Encoder","driver","interface",".","Each","encoder","is","expected","to","support","a","specific","format","."]
docstr: Return the encode/encoding format as a short string
  Example: "MP3", "OGG", "AVI", ...
code: def format():
      """Return the encode/encoding format as a short string
      Example: "MP3", "OGG", "AVI", ...
      """
  
imports: from __future__ import absolute_import
  from .component import Interface
label_desc: Use image node_id 2 for calling the IEncoder obj's underlying member method code with example usage: obj.format() without return types