@type t() :: %LettaAPI.Model.ToolRunFromSource{
  args: %{optional(String.t()) => any()},
  args_json_schema: LettaAPI.Model.ArgsJsonSchema.t() | nil,
  env_vars: %{optional(String.t()) => any()} | nil,
  json_schema: LettaAPI.Model.JsonSchema1.t() | nil,
  name: LettaAPI.Model.Name1.t() | nil,
  source_code: any(),
  source_type: LettaAPI.Model.SourceType.t() | nil
}