* iterators that don't support {@code remove()}, but all other methods are supported by the map
   * and its views. When given a key that doesn't satisfy the predicate, the map's {@code put()} and
   * {@code putAll()} methods throw an {@link IllegalArgumentException}.
   *
   * <p>When methods such as {@code removeAll()} and {@code clear()} are called on the filtered map

		}
	}

	// test cases with inputs and expected result for HeadObject.
	testCases := []struct {
		bucketName string
		objectName string
		accessKey  string
		secretKey  string
		// expected output.
		expectedRespStatus int // expected response status body.
	}{
		// Test case - 1.
		// Fetching stat info of object and validating it.
		{
			bucketName:         bucketName,