fix BatchRequestItem now properly serializes the header and body fields - #959

fix BatchRequestItem now properly serializes the header and body fields#959

Vincent Biret (baywet) merged 5 commits into

microsoftgraph:mainmicrosoftgraph/msgraph-sdk-python-core:mainfrom

carterm-hdc:fix-batch-item-serializecarterm-hdc/msgraph-sdk-python-core:fix-batch-item-serializeCopy head branch name to clipboard