question: adds a header with name and value . prefer this method for multiply-valued headers like `` cookie '' . concode_field_sep RawHeaders headers concode_elem_sep String method concode_elem_sep RawHeaders headers concode_elem_sep String method concode_elem_sep Object tag concode_elem_sep Body body concode_elem_sep URL url concode_field_sep List<String> headers concode_elem_sep String headerName concode_elem_sep String method concode_elem_sep Builder method concode_elem_sep Set<String> headerNames concode_elem_sep String urlString concode_elem_sep String headerValue concode_elem_sep int headerCount concode_elem_sep Body body concode_elem_sep Builder newBuilder concode_elem_sep URL url concode_elem_sep Builder url concode_elem_sep Builder url concode_elem_sep Builder put concode_elem_sep RawHeaders rawHeaders concode_elem_sep Builder rawHeaders concode_elem_sep Builder head concode_elem_sep void writeTo concode_elem_sep Builder post concode_elem_sep Request build concode_elem_sep Builder get concode_elem_sep String header concode_elem_sep Builder header concode_elem_sep Body create concode_elem_sep Body create concode_elem_sep Body create concode_elem_sep long contentLength concode_elem_sep Object tag concode_elem_sep Builder tag concode_elem_sep MediaType contentType
target: Builder function ( String arg0 , String arg1 ) { headers . add ( arg0 , arg1 ) ; return this ; }