lib/rails/graphql/field/mutation_field.rb
# Ensures that the performer is defined
Ensures that the performer is defined
Ensures that the performer is defined
def validate!(*)
        super if defined? super
        raise ValidationError, <<~MSG.squish unless performer.present?
          The "#{gql_name}" mutation field must have a perform action through a given
          block or a method named #{method_name} on #{owner.class.name}.
        MSG
      end
def validate! ( * ) super if defined? super raise ValidationError , <<~MSG . squish unless performer . present? 
          The " #{ gql_name } " mutation field must have a perform action through a given
          block or a method named  #{ method_name }  on  #{ owner . class . name } .
         MSG end
Ensures that the performer is defined
Ensures that the performer is defined