action mcw_get_chromosome_by_assembly_using_get { label: "Return a list of chromosomes" provider: mcw method: GET path: "/maps/chr/{chromosome}/{mapKey}" encoding: json input: { type: "object" properties: { chromosome: { type: "string" } mapKey: { type: "integer" format: "int32" } } required: ["chromosome", "mapKey"] additionalProperties: false } output: { type: "object" additionalProperties: true } }