whole_func_string: function pipeLoop() {
          currentWrite = Promise.resolve();
  
          if (shuttingDown === true) {
            return Promise.resolve();
          }
  
          return writer._readyPromise.then(() => {
            return ReadableStreamDefaultReaderRead(reader).then(({ value, done }) => {
              if (done === true) {
                return undefined;
              }
  
              currentWrite = WritableStreamDefaultWriterWrite(writer, value);
              return currentWrite;
            });
          })
          .then(pipeLoop);
        }
func_code_string: function pipeLoop() {
          currentWrite = Promise.resolve();
  
          if (shuttingDown === true) {
            return Promise.resolve();
          }
  
          return writer._readyPromise.then(() => {
            return ReadableStreamDefaultReaderRead(reader).then(({ value, done }) => {
              if (done === true) {
                return undefined;
              }
  
              currentWrite = WritableStreamDefaultWriterWrite(writer, value);
              return currentWrite;
            });
          })
          .then(pipeLoop);
        }
func_documentation_string: Using reader and writer, read all chunks from this and write them to dest - Backpressure must be enforced - Shutdown must stop all activity