service_tier: Optional[Literal['priority', 'default', 'flex', 'reserved']] = Field(
default=None,
description="Service tier for model invocation.\n\n Specifies the processing tier type used for serving the request.\n Supported values are 'priority',
'default',
'flex',
and 'reserved'.\n\n - 'priority': Prioritized processing for lower latency\n - 'default': Standard processing tier\n - 'flex': Flexible processing tier with lower cost\n - 'reserved': Reserved capacity for consistent performance\n\n If not provided,
AWS uses the default tier.\n "
)