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##### SUMMARY

Two vmware modules uses `copy()` to duplicate an internal instance of a pyvmomi object. This to be able to modify the object during an iteration.

- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_guest.py#L788
- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_datastore_facts.py#L220

As explain here, https://github.com/ansible/ansible/pull/60196/files#r312643761 this is not the best approach and this may impact the performance.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME

vmware

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
devel
```
cluster:
     description:
     - Cluster to search for datastores.
     - If set, facts of datastores belonging this clusters will be returned.
     - This parameter is required, if C(datacenter) is not supplied.
     required: False
     type: str
   gather_nfs_mount_info:
    description:
    - Gather mount information of NFS datastores.
    - Disabled per default because this slows down the execution if you have a lot of datastores.
    type: bool
    default: false
    version_added: 2.8
   gather_vmfs_mount_info:
    description:
    - Gather mount information of VMFS datastores.
    - Disabled per default because this slows down the execution if you have a lot of datastores.
    type: bool
    default: false
    version_added: 2.8
extends_documentation_fragment: vmware.documentation
'''
EXAMPLES = '''
- name: Gather facts from standalone ESXi server having datacenter as 'ha-datacenter'
  vmware_datastore_facts:
    hostname: '{{ vcenter_hostname }}'
    username: '{{ vcenter_username }}'
    password: '{{ vcenter_password }}'
    datacenter_name: '{{ datacenter_name }}'