class Hash

def extractable_options?

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

def extractable_options?: () -> untyped

This signature was generated using 2 samples from 1 application.

the Array when it is the last element of the Array.
is extractable, Array#extract_options! pops it from
true to declare themselves as extractable. If a Hash
Subclasses of Hash may implement this method and return
By default, only instances of Hash itself are extractable. 
def extractable_options?
  instance_of?(Hash)
end