module Psych

See safe_load for options.
the specified +fallback+ return value, which defaults to +nil+.
+filename+ as a Ruby object, or if the file is empty, it returns
Safely loads the document contained in +filename+. Returns the yaml contained in
##

def self.safe_load_file filename, **kwargs
  File.open(filename, 'r:bom|utf-8') { |f|
    self.safe_load f, filename: filename, **kwargs
  }
end