class Hash

def stringify_keys

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

def stringify_keys: () -> untyped

This signature was generated using 4 samples from 1 application.

# => {"name"=>"Rob", "age"=>"28"}
hash.stringify_keys

hash = { name: 'Rob', age: '28' }

Returns a new hash with all keys converted to strings. 
def stringify_keys
  transform_keys(&:to_s)
end