first.yml

# Lets write the program
## This is for Testing 
## This is 2nd Line
courses:
  course_name: "PL/SQL"
  version: 1.0
  price: $myprice 199
  is_public: true
  release_date: 2023-02-12
  pre_enrol: null
  tags:
    - python 
    - web developer
    - mysql
  course_ta: ["Anirudh","Anurag","Mukesh"]
  ta_details:
    - name: "Anirudh"
      email: "abc@org.com"
      role: "content admin"
    - name: "Chandan"
      email: "chandan@chandan.com"
      role: "TM"
    - { name: "Rakesh", email: "abc@google.com", role: "deveops"} ## above and this is same only 

  short_desc: > 
    here is description about This Yaml file 
  long_desc: |
    This is 
    for long 
    desc
  process_payment: *price

  adv: &adv
    mykey: myval
  
  another_adv:
    one: two
    <<: *adv