class Graphql::Generators::UnionGenerator

“‘
rails g graphql:union SearchResultType ImageType AudioType
“`
with the specified member types.
Generate a union type by name

def graphql_type 

def graphql_type
  "union"
end

def normalized_possible_types 

def normalized_possible_types
  custom_fields.map { |t| self.class.normalize_type_expression(t, mode: :ruby)[0] }
end