@type t() :: %ExBifrost.Model.BedrockContentBlock{
  cachePoint:
    ExBifrost.Model.BedrockConverseRequestSystemInnerCachePoint.t() | nil,
  document: ExBifrost.Model.BedrockContentBlockDocument.t() | nil,
  guardContent:
    ExBifrost.Model.BedrockConverseRequestSystemInnerGuardContent.t() | nil,
  image: ExBifrost.Model.BedrockContentBlockImage.t() | nil,
  json: map() | nil,
  reasoningContent:
    ExBifrost.Model.BedrockContentBlockReasoningContent.t() | nil,
  text: String.t() | nil,
  toolResult: ExBifrost.Model.BedrockContentBlockToolResult.t() | nil,
  toolUse: ExBifrost.Model.BedrockContentBlockToolUse.t() | nil
}