@type t() ::
  %Procore.Model.RestV10ProjectsProjectIdActionPlansPlanItemsPostRequestPlanItem{
    description: String.t() | nil,
    due_at: DateTime.t() | nil,
    holding_type: String.t() | nil,
    notes: String.t() | nil,
    plan_section_id: integer(),
    title: String.t()
  }