Typed Inttegro domain value.
@type t() :: %Inttegro.Keys.SecretKeyPage{ count: integer(), has_more: boolean(), keys: [Inttegro.Keys.SecretKey.t()], number: integer(), size: integer(), total: integer() }
@spec from_map(map()) :: t()
@spec new!(map() | keyword()) :: t()
@spec to_map(t()) :: map()