infrastructure-import-errors-importerror-cannot-import-name-global-handler-from-ea7a820e

THEN Instead of importing 'global_handler' directly from 'llama_index.core', call 'set_global_handler' from 'llama_index.callbacks.global_handlers' with your desired evaluation mode and parameters. This function dynamically sets the global handler, which can then be accessed via 'llama_index.global_handler'.

import llama_index
from llama_index.callbacks.global_handlers import set_global_handler
set_global_handler(eval_mode='wandb', param1=value1)
handler = llama_index.global_handler