how to capture SSH operator output to a variable in airflow using xcoms or any other way

I am new to xcoms in airflow and unable to get exact information , we have an ssh operator task as below with "echo" command

task_id = SSHOperator(
    task_id="task_id",
    ssh_conn_id="CONNECTION_ID",
    command="echo Failed"
)

is there any way to capture the above task output to a variable like

variablea = "Failed"

Any suggestion pls.. I tried xcom push=True but it is displaying blank value..

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