index.js
function stringify (input, value) {
  input.push(JSON.stringify(value))
  input.push(null)
}
function stringify (input, value) {
  input.push(JSON.stringify(value))
  input.push(null)
}
function stringify ( input , value ) { input . push ( JSON . stringify ( value ) ) input . push ( null ) }
Stringify object and push down the pipe.

@param {Stream} input
@param {Object} value
@api private
Stringify object and push down the pipe .