Types with reserved keywords 'is' and 'as' are generated incorrectly

[vsahav]

Say we have a graphql schema as follows:

Type Somei8n {
  aa: String,
  ab: String,
  ae: String,
  # and so on...
  as: String,
}

The generator generates a .kt file:

data class Somei8n (
  val aa: String? = null,
  val ab: String? = null,
  //and so on...
  val as: String? = null, //compilation error due to the reserved keyword as not being wrapped in backticks
)

Types with fields matching to reserved keywords should be wrapped with backticks:

data class Somei8n (
  val `as`: String? = null, //works and retains field name
)

Applies at least to is and as keywords. Exhaustive list of Kotlin keywords can be found at: kotlin docs