Using export -f with broken xargs

I know there is a post here explaining how to do this, but I am doing exactly what it says, but cannot get my bash function to work with xargs. My bash profile looks like this:

export -f eb_deploy

function eb_deploy()
{
  echo Deploying $1
  eb deploy $1
}

function deploy_app()
{
aws elasticbeanstalk describe-environments --application-name $1 | grep EnvironmentName | cut -d: -f 2 | sed 's/\"//g' | sed 's/\,//g' | xargs -n1 eb_deploy
}

      

        
        
        
      

    

But I always get

xargs: eb_deploy: No such file or directory

      

        
        
        
      

    

Can anyone enlighten me as to why this is not working?

I'm currently running Mac OS X Yosemite Version: 10.10.3