Bedrock Agent Runtime > Structures > FlowTraceNodeInputSource FlowTraceNodeInputSource¶ Structure Class¶ FlowTraceNodeInputSource dataclass ¶ Represents the source of input data for a flow trace node field. Attributes¶ expression class-attribute instance-attribute ¶ expression: str = field(repr=False) The expression used to extract data from the source. node_name instance-attribute ¶ node_name: str The name of the source node that provides the input data. output_field_name instance-attribute ¶ output_field_name: str The name of the output field from the source node.