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  1. or download this
    "method result   - ${ \$obj->method }\n";

"method result   - " . $obj->method . "\n";
  2. or download this
    "foo @{[ some_list() ]}.";

...
"foo ${\ join ' ', some_list() }";

"foo " . join ' ', some_list();
  3. or download this
    printf "method result  - %s\n", $obj->method;