Add more precise types in EnvVarProcessorInterface

Author: stof

EnvVarProcessorInterface.php

@@ -23,16 +23,16 @@ interface EnvVarProcessorInterface
     /**
      * Returns the value of the given variable as managed by the current instance.
      *
-     * @param string   $prefix The namespace of the variable
-     * @param string   $name   The name of the variable within the namespace
-     * @param \Closure $getEnv A closure that allows fetching more env vars
+     * @param string                  $prefix The namespace of the variable
+     * @param string                  $name   The name of the variable within the namespace
+     * @param \Closure(string): mixed $getEnv A closure that allows fetching more env vars
      *
      * @throws RuntimeException on error
      */
     public function getEnv(string $prefix, string $name, \Closure $getEnv): mixed;
 
     /**
-     * @return string[] The PHP-types managed by getEnv(), keyed by prefixes
+     * @return array<string, string> The PHP-types managed by getEnv(), keyed by prefixes
      */
     public static function getProvidedTypes(): array;
 }