DigitalOcean.Database.create_connection_pool

You're seeing just the function create_connection_pool, go back to DigitalOcean.Database module for more information.
Link to this function

create_connection_pool(database_id, opts)

Specs

create_connection_pool(String.t(), Keyword.t()) :: DigitalOcean.Operation.t()

Create a PostgreSQL connection pool for a database cluster.

Examples

iex> DigitalOcean.Database.create_connection_pool(
...>   "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30",
...>   name: "backend-pool",
...>   mode: "transaction",
...>   size: 10,
...>   db: "default_db",
...>   user: "doadmin"
...> ) |> DigitalOcean.request()
{ :ok, %DigitalOcean.Response{} }