class Jekyll::Converters::Identity

For more info on converters see jekyllrb.com/docs/plugins/converters/
Identity converter. Returns same content as given.

def convert(content)

Returns a String of the converted content.

content - String content of file (without front matter).

Logic to do the content conversion. 
def convert(content)
  content
end

def matches(_ext)

Returns true since it always matches.

_ext - The String extension to check (not relevant here)

Takes one argument: the file's extension (including the dot).
Public: Does the given extension match this converter's list of acceptable extensions? 
def matches(_ext)
  true
end

def output_ext(ext)

Returns The String output file extension.

ext - The String extension or original file.

Public: The extension to be given to the output file (including the dot). 
def output_ext(ext)
  ext
end