code: function (state, cli) {
  
      var name = cli['<name>'];
  
      var chains = Object.keys(state.state.pointers);
  
      if(chains.indexOf(name) > -1) {
        console.log(`Error: Chain ${name} is already known, please choose another name.`);
        process.exit();
      }
  
      newChain({name}, state, (err, chaindata) => {
        if(typeof chaindata === 'string') return true;
        state.state.pointers[chaindata.name] = chaindata.chainenv;
        state.state.head = chaindata.name;
        state.saveState(true);
      });
    }
docs: Create a new environment