class Nokogiri::CSS::Parser

def [](string)

Experimental RBS support (using type sampling data from the type_fusion project). 

def []: (Array[String] string) -> Array[String]

This signature was generated using 1 sample from 1 application.

Get the css selector in +string+ from the cache 
def [](string)
  return nil unless cache_on?
  @mutex.synchronize { @cache[string] }
end