Fetches up to 10 reels per request from a public Facebook page. Each reel includes id, post_id, url, view_count, description, creation_time, video_url, thumbnail, play_time_in_ms, and music details. view_count comes from Facebook's public Reels badge (play_count_reduced), converted to a number; abbreviated values such as 27K become 27000, not an exact count. This list does not include like_count, reaction_counts, comment_count, share_count, or an is_pinned flag. Do not infer pinning from the order of returned reels. For available engagement metrics and a more precise view_count when Facebook e Uses the caller's OpenAny gateway credentials. Charges and authorization are determined by the gateway.