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use HashMap;
use crateInput;
use InputDefinition;
/// ### Directive Definition
///
/// Directives are used to modify the behavior of a resolver, types.
/// and provide additional information and metadata.
///
/// Directives can be applied on a field, type, enum, enum value, or input args.
///
/// They can also have arguments, which can also be optional by setting a default.
///
/// ```notrust
/// directive @lowercase on FieldDefinition
/// directive @deprecated(
/// reason: String = "No longer supported"
/// )
/// ```
/// ### AppliedDirective
/// A directive being applied or used on a field, type, enum, enum value, or input arg.
///
/// Named below for convenience.
/// ```notrust
/// @type_directive(arg: 123)
/// type Root {
/// this_is_a_field(arg: String): String @FieldDefinition(an_arg: 123)
/// }
/// ```