Task: Get invoices from Xero

n8n workflow JSON:
{"nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Xero","type":"n8n-nodes-base.xero","position":[450,300],"parameters":{"options":{},"operation":"getAll","organizationId":"ab7e9014-5d01-418f-a64c-dbb6bf5ba2ea"},"credentials":{"xeroOAuth2Api":"n8n_xero"},"typeVersion":1}],"connections":{"On clicking 'execute'":{"main":[[{"node":"Xero","type":"main","index":0}]]}}}