Implicit requirement on "jmespath" and "proxmoxer"

[lhanson]

I'm new to ansible so I'm still figuring out how the pieces all fit together, but when I try using this role I get the following error:

TASK [engonzal.proxmox : Container already exists] ****************************************************************
fatal: [bobik]: FAILED! => {"msg": "The conditional check 'pve_hostname in pve_ct_list_clean|json_query('[*].name')' failed. The error was: You need to install "jmespath" prior to running json_query filter\n\nThe error appears to be in '/home/ldh/.local/share/ansible/roles/engonzal.proxmox/tasks/inventory.yml': line 45, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: Container already exists\n ^ here\n"}

If "jmespath" is a requirement of the role, maybe you could mention that in the Readme?

I'm also unclear on the best way to proceed; I manually did a pip install jmespath, but ad-hoc manual fixes like that feel contrary to the spirit of trying to manage infrastructure in a declarative manner. Is there a way to express and manage that dependency within ansible itself?

Thanks!
edit: added mention of "proxmoxer" module which is required on the node being managed