ExAliyunOts.Search.match_all_query
You're seeing just the function
match_all_query, go back to ExAliyunOts.Search module for more information.
Specs
match_all_query() :: map()
Use MatchAllQuery as the nested :query option of :search_query option in ExAliyunOts.search/4.
Example
import MyApp.TableStore
search "table", "index_name",
search_query: [
query: match_all_query()
]