# `ExOura.InterbeatInterval`
[🔗](https://github.com/tgrk/ex_oura/blob/v3.0.1/lib/ex_oura/interbeat_interval.ex#L1)

API functions for retrieving Oura interbeat interval time-series data.

# `end_datetime`

```elixir
@type end_datetime() :: DateTime.t() | NaiveDateTime.t()
```

# `next_token`

```elixir
@type next_token() :: String.t() | nil
```

# `opts`

```elixir
@type opts() :: Keyword.t()
```

# `start_datetime`

```elixir
@type start_datetime() :: DateTime.t() | NaiveDateTime.t()
```

# `multiple_interbeat_interval`

```elixir
@spec multiple_interbeat_interval(
  start_datetime(),
  end_datetime(),
  next_token(),
  opts()
) ::
  {:ok, ExOura.Client.TimeSeriesResponsePublicInterbeatIntervalRow.t()}
  | {:error, term()}
```

Retrieves interbeat interval rows for a time range.

---

*Consult [api-reference.md](api-reference.md) for complete listing*