question: returns boolean that could possibly be null . concode_field_sep FromJsonHelper fromApiJsonHelper concode_elem_sep String jsonQuery concode_elem_sep JsonElement parsedQuery concode_field_sep Long longValueOfParameterNamed concode_elem_sep boolean isChangeInStringParameterNamed concode_elem_sep String passwordValueOfParameterNamed concode_elem_sep String dateFormat concode_elem_sep BigDecimal bigDecimalValueOfParameterNamed concode_elem_sep boolean isChangeInBooleanParameterNamed concode_elem_sep String locale concode_elem_sep Integer integerValueOfParameterNamed concode_elem_sep boolean parameterExists concode_elem_sep boolean isChangeInLongParameterNamed concode_elem_sep Map<String,Boolean> mapValueOfParameterNamed concode_elem_sep String json concode_elem_sep JsonElement parsedJson concode_elem_sep JsonQuery from concode_elem_sep String[] arrayValueOfParameterNamed concode_elem_sep boolean booleanPrimitiveValueOfParameterNamed concode_elem_sep LocalDate localDateValueOfParameterNamed concode_elem_sep boolean hasParameter concode_elem_sep boolean isChangeInIntegerParameterNamed concode_elem_sep boolean isChangeInPasswordParameterNamed concode_elem_sep boolean isChangeInArrayParameterNamed concode_elem_sep boolean differenceExists concode_elem_sep boolean differenceExists concode_elem_sep boolean differenceExists concode_elem_sep boolean differenceExists concode_elem_sep boolean differenceExists concode_elem_sep boolean differenceExists concode_elem_sep boolean isChangeInBigDecimalParameterNamed concode_elem_sep boolean isChangeInLocalDateParameterNamed concode_elem_sep String stringValueOfParameterNamed
target: Boolean function ( final String arg0 ) { return this . fromApiJsonHelper . extractBooleanNamed ( arg0 , this . parsedQuery ) ; }