Gly.Image.get_metadata_keys

### Method

# Gly Imageget_metadata_keys

since: 2.0

#### Declaration [src]

    GStrv
    gly_image_get_metadata_keys (
      GlyImage* image
    )

#### Description [src]

Get the list of available keys for `gly_image_get_metadata_key_value()`.

Available since: 2.0

#### Return value

Type: An array of `utf8`

List of existing keys.

The array is `NULL`-terminated.
Each element is a NUL terminated UTF-8 string.