UniqueFieldDefinitionNamesRuleUnique field definition names A GraphQL complex type is only valid if all its fields are uniquely named. function UniqueFieldDefinitionNamesRule(context: SDLValidationContext): ASTVisitor;§UniqueFieldDefinitionNamesRule(context: SDLValidationContext): ASTVisitor[src]§Parameters§context: SDLValidationContext[src]§Return Type§ASTVisitor[src]