How to write function to apply every job by single attempt

I have 100 of Jenkins jobs. I have to write function to skip a stage in every Jenkins job via pipeline. without editing every Jenkins job pipeline, is there any way to apply it to all jobs by single attempt?
(I am following scripted pipeline approach)

here is pipeline script I have to apply for all jobs

import org.jenkinsci.plugins.pipeline.modeldefinition.Utils		

stage('check the branch') {
   if ( "${Branch}" == "master" || "${Branch}" == "development" ) {                                          
        echo  """ $Branch branch is executed""" 
    else {                                   
        echo """$Branch branch is skipped""" 
		//unstable (message: "${STAGE_NAME} is unstable")


Hello @dimeshk and welcome to this community :wave:

I can see your use case but I don’t know how to implement it. :thinking:
I was thinking of the REST API, but that won’t work.

Where do you store your job definitions? In an SCM? In your workspace?
Could you write a script that would make the modification outside of Jenkins?