system

Each entry can be either:

• a simple string (for straightforward text-based system prompts), or
• a dictionary matching the Converse API system message schema, allowing inclusion of additional fields like guardContent, cachePoint, etc.

Example:

system = [ "a simple system prompt", { "text": "another system prompt", "guardContent": {"text": {"text": "string"}}, "cachePoint": {"type": "default"} }, ]

String inputs will be internally converted to the appropriate message format, while dict entries will be passed through as-is. Any invalid formats will be rejected by the Converse API.