Check out example codes for "how ruby methods take in a hash of attributes". It will help you in understanding the concepts better.
Code Example 1
def create(name:, age:, gender:) #Main lesson on this line
some_variable = SomeClass.new(name, age, gender)
some_variable.save #save is an instance method undefined here
some_variable
end
Learn ReactJs, React Native from akashmittal.com