class AzureBlob::Client

def blob_exist?(key, options = {})

Calls to {Get Blob Properties}[https://learn.microsoft.com/en-us/rest/api/storageservices/get-blob-properties]

Returns a boolean indicating if the blob exists.
def blob_exist?(key, options = {})
  get_blob_properties(key, options).present?
rescue AzureBlob::Http::FileNotFoundError
  false
end