anchor.diff:  
   * https://github.com/ropensci/elasticdsl[elasticdsl]:
     A high-level R DSL for Elasticsearch, wrapping the elastic R client.
  -  
  +
   * https://github.com/uptake/uptasticsearch[uptasticsearch]:
     An R client tailored to data science workflows.
   
  
positive.code: [[rust]]
  == Rust
  
  * https://github.com/benashford/rs-es[rs-es]:
    A REST API client with a strongly-typed Query DSL.
  
  * https://github.com/elastic-rs/elastic[elastic]:
    A modular REST API client that supports freeform queries.
    
  [[scala]]
  == Scala
  
  
negative.code: 
  * https://github.com/olivere/elastic[elastic]:
    Elasticsearch client for Google Go.
  
  * https://github.com/softctrl/elk[elk]
    Golang lib for Elasticsearch client.
  
  