copy
fun copy( sourceLocation: SourceLocation? = this.sourceLocation, operationType: String = this.operationType, name: String? = this.name, variableDefinitions: List<GQLVariableDefinition> = this.variableDefinitions, directives: List<GQLDirective> = this.directives, selections: List<GQLSelection> = this.selections, description: String? = this.description): GQLOperationDefinition