import type { FilterFieldSuggestion } from '../suggestions/Suggestion.types.js';
import type { FilterFieldSuggestionGroup } from '../suggestions/SuggestionGroup.types.js';
import type { FilterFieldFlatNode } from '../types/conversion-utils.js';
import type { FilterFieldBigIntNode, FilterFieldBooleanNode, FilterFieldComparisonOperatorNode, FilterFieldDurationNode, FilterFieldErrorNode, FilterFieldExistsOperatorNode, FilterFieldGroupNode, FilterFieldInclusionOperatorNode, FilterFieldJSONPathNode, FilterFieldKeyNode, FilterFieldLeafNode, FilterFieldListNode, FilterFieldNode, FilterFieldNumberNode, FilterFieldSearchOperatorNode, FilterFieldStatementNode, FilterFieldStringNode, FilterFieldVariableNode } from '../types/tree-nodes.js';
/**
 * Check whether the given node is a filter field JSONPath node
 * @internal
 */
export declare function isFilterFieldJSONPathNode(node: unknown): node is FilterFieldJSONPathNode;
/**
 * Check whether the given node is a filter field String node
 * @internal
 */
export declare function isFilterFieldStringNode(node: unknown): node is FilterFieldStringNode;
/**
 * Check whether the given node is a filter field Variable node
 * @internal
 */
export declare function isFilterFieldVariableNode(node: unknown): node is FilterFieldVariableNode;
/**
 * Check whether the given node is a filter field Number node
 * @internal
 */
export declare function isFilterFieldNumberNode(node: unknown): node is FilterFieldNumberNode;
/**
 * Check whether the given node is a filter field BigInt node
 * @internal
 */
export declare function isFilterFieldBigIntNode(node: unknown): node is FilterFieldBigIntNode;
/**
 * Check whether the given node is a filter field Boolean node
 * @internal
 */
export declare function isFilterFieldBooleanNode(node: unknown): node is FilterFieldBooleanNode;
/**
 * Check whether the given node is a filter field Duration node
 * @internal
 */
export declare function isFilterFieldDurationNode(node: unknown): node is FilterFieldDurationNode;
/**
 * Check whether the given node is a filter field ExistsOperator node
 * @internal
 */
export declare function isFilterFieldExistsOperatorNode(node: unknown): node is FilterFieldExistsOperatorNode;
/**
 * Check whether the given node is a filter field SearchOperator node
 * @internal
 */
export declare function isFilterFieldSearchOperatorNode(node: unknown): node is FilterFieldSearchOperatorNode;
/**
 * Check whether the given node is a filter field InclusionOperator node
 * @internal
 */
export declare function isFilterFieldInclusionOperatorNode(node: unknown): node is FilterFieldInclusionOperatorNode;
/**
 * Check whether the given node is a filter field Error node
 * @internal
 */
export declare function isFilterFieldErrorNode(node: unknown): node is FilterFieldErrorNode;
/**
 * Check whether the given node is a filter field key node.
 * @internal
 */
export declare function isFilterFieldKeyNode(node: unknown): node is FilterFieldKeyNode;
/**
 * Check whether the given node is a filter field ComparisonOperator node.
 * @internal
 */
export declare function isFilterFieldComparisonOperatorNode(node: unknown): node is FilterFieldComparisonOperatorNode;
/**
 * Check whether the given node is a filter field group node.
 * @internal
 */
export declare function isFilterFieldGroupNode(node: unknown): node is FilterFieldGroupNode;
/**
 * Check whether the given node is a filter field statement node.
 * @internal
 */
export declare function isFilterFieldStatementNode(node: unknown): node is FilterFieldStatementNode;
/**
 * Check whether the given node is a filter field list node.
 * @public
 */
export declare function isFilterFieldListNode(node: unknown): node is FilterFieldListNode;
/**
 * Check if the given token is a node holding a value.
 * Not necessarily a leaf node. E.g. a List has a value,
 * but the value consists of other tokens.
 * @internal
 */
export declare function isFilterFieldValueNode(node: unknown): node is FilterFieldLeafNode;
/**
 * Check whether the given node is a filter field leaf node.
 * @public
 */
export declare function isFilterFieldLeafNode(node: unknown): node is FilterFieldLeafNode;
/**
 * Check if the given token is a filter value.
 * @internal
 */
export declare function isFilterValue(token: FilterFieldLeafNode | FilterFieldListNode): boolean;
/**
 * Returns whether the current operator is valid for a position operator (start-with / ends-with / contains).
 * Only equals, not equals, and ends-with/not-ends-with (will be converted to contains/not-contains) are valid values.
 * @internal
 */
export declare function isValidPositionOperator(node: FilterFieldStatementNode): boolean;
/**
 * Returns whether the current operator is a a LogicalOperator. Either it has the type LogicalOperator or it has the
 * type Error and 'OR' or 'AND' as value (if the LogicalOperator is in an invalid position or 'OR' is used in the basic syntax).
 * @internal
 */
export declare function isLogicalOperator(node: FilterFieldFlatNode | FilterFieldNode): boolean;
/**
 * Returns whether the given value is a filter field suggestion group.
 * @internal
 */
export declare function isFilterFieldSuggestionGroup(value: unknown): value is FilterFieldSuggestionGroup;
/**
 * Returns whether the given value is a filter field suggestion.
 * @internal
 */
export declare function isFilterFieldSuggestion(value: unknown): value is FilterFieldSuggestion;