parameters: (req)
docstring: Encode body of request to bytes and update content-type if required.
  
          If the body of req is Unicode then encode to the charset found in
          content-type header if present, otherwise UTF-8, or ASCII if
          content-type is application/x-www-form-urlencoded. If encoding to UTF-8
          then add charset to content-type. Modifies req directly, does not
          return a modified copy.
  
          req -- Requests PreparedRequest object
docstring_summary: Encode body of request to bytes and update content-type if required.
docstring_tokens: Encode body of request to bytes and update content - type if required .
function: def encode_body(req):
          """
          Encode body of request to bytes and update content-type if required.
  
          If the body of req is Unicode then encode to the charset found in
          content-type header if present, otherwise UTF-8, or ASCII if
          content-type is application/x-www-form-urlencoded. If encoding to UTF-8
          then add charset to content-type. Modifies req directly, does not
          return a modified copy.
  
          req -- Requests PreparedRequest object
  
          """
          if isinstance(req.body, text_type):
              split = req.headers.get('content-type', 'text/plain').split(';')
              if len(split) == 2:
                  ct, cs = split
                  cs = cs.split('=')[1]
                  req.body = req.body.encode(cs)
              else:
                  ct = split[0]
                  if (ct == 'application/x-www-form-urlencoded' or
                          'x-amz-' in ct):
                      req.body = req.body.encode()
                  else:
                      req.body = req.body.encode('utf-8')
                      req.headers['content-type'] = ct + '; charset=utf-8'
function_tokens: def encode_body ( req ) : if isinstance ( req . body , text_type ) : split = req . headers . get ( 'content-type' , 'text/plain' ) . split ( ';' ) if len ( split ) == 2 : ct , cs = split cs = cs . split ( '=' ) [ 1 ] req . body = req . body . encode ( cs ) else : ct = split [ 0 ] if ( ct == 'application/x-www-form-urlencoded' or 'x-amz-' in ct ) : req . body = req . body . encode ( ) else : req . body = req . body . encode ( 'utf-8' ) req . headers [ 'content-type' ] = ct + '; charset=utf-8'