Setting multiple values in sysctl with Ansible

I have a playbook with several tasks setting values to sysctl. Instead of having a task for each setting, how can I set all the values with one task, using the sysctl module?

Playbook snippet:

- name: Set tcp_keepalive_probes in sysctl
  become: yes
  sysctl:
    name: net.ipv4.tcp_keepalive_probes
    value: 3
    state: present
    reload: yes

- name: Set tcp_keepalive_intvl in sysctl
  become: yes
  sysctl:
    name: net.ipv4.tcp_keepalive_intvl
    value: 10
    state: present
    reload: yes

- name: Set rmem_default in sysctl
  become: yes
  sysctl:
    name: net.core.rmem_default
    value: 16777216
    state: present
    reload: yes

define all the variables in a var file:

e.g.

sysctl:
  - name: test
    value: test

... ...

playbook:

- hosts: "{{ }}"
  tasks: 
    - name: update sysctl param
      sysctl:
        name: "{{ item.name }}"
        value: "{{ item.value }}"
        state: present
        reload: yes
      with_items:
        - "{{ hosts }}"