code: @GET
      @Path("table/{tableName}/inputs/graph")
      @Consumes(Servlets.JSON_MEDIA_TYPE)
      @Produces(Servlets.JSON_MEDIA_TYPE)
      public Response inputsGraph(@Context HttpServletRequest request, @PathParam("tableName") String tableName) {
          if (LOG.isDebugEnabled()) {
              LOG.debug("==> DataSetLineageResource.inputsGraph({})", tableName);
          }
  
          AtlasPerfTracer perf = null;
  
          try {
              if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
                  perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "DataSetLineageResource.inputsGraph(tableName=" + tableName + ")");
              }
  
              final String jsonResult = lineageService.getInputsGraph(tableName);
  
              JSONObject response = new JSONObject();
              response.put(AtlasClient.REQUEST_ID, Servlets.getRequestId());
              response.put("tableName", tableName);
              response.put(AtlasClient.RESULTS, new JSONObject(jsonResult));
  
              return Response.ok(response).build();
          } catch (EntityNotFoundException e) {
              LOG.error("table entity not found for {}", tableName);
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.NOT_FOUND));
          } catch (DiscoveryException | IllegalArgumentException e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
          } catch (WebApplicationException e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
              throw e;
          } catch (Throwable e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.INTERNAL_SERVER_ERROR));
          } finally {
              AtlasPerfTracer.log(perf);
          }
      }
docs: Returns the inputs graph for a given entity.
  
  @param tableName table name