Module json 

Constants

GRAPH_DEFAULT_FIELDS

Default node fields when neither –json-fields nor –json-full is specified.

GRAPH_NODE_FIELDS

All available node fields for graph JSON output.

Functions

build_node_value

Build a JSON object containing only the requested fields for a node.

render_json

Render the lineage graph as JSON to stdout. Pretty-prints when stdout is a terminal, compact otherwise.

render_json_to_writer

Render the lineage graph as JSON to the given writer.

resolve_graph_fields

Resolve which fields to emit, and validate field names. Returns Err with a message listing available fields if any name is unknown.