whole_func_string: function insertCountryAliases( data ) {
  	Object.keys( aliases ).forEach( source => {
  		data[ source ] = data[ aliases[ source ] ];
  	} );
  	return data;
  }
func_code_string: function insertCountryAliases( data ) {
  	Object.keys( aliases ).forEach( source => {
  		data[ source ] = data[ aliases[ source ] ];
  	} );
  	return data;
  }
func_documentation_string: Creates aliases. E.g. allows `uk` to be found by both `gb` and `uk`.
  @param data