import { AttributeNode, ElementDeclarationNode, FunctionApplicationNode, FunctionExpressionNode, IdentifierStreamNode, PrimaryExpressionNode, SyntaxNode, TupleExpressionNode, VariableNode } from '../types/nodes';
import { SyntaxToken } from '../types/tokens';
export declare function extractVariableNode(value?: unknown): SyntaxToken | undefined;
export declare function extractStringFromIdentifierStream(stream?: IdentifierStreamNode): string | undefined;
export declare function getElementNameString(element?: SyntaxNode): string | undefined;
export declare function isTupleEmpty(tuple: TupleExpressionNode): boolean;
export declare function getBody(node?: ElementDeclarationNode): (FunctionApplicationNode | ElementDeclarationNode)[];
export declare function destructureMemberAccessExpression(node?: SyntaxNode): SyntaxNode[] | undefined;
export declare function destructureComplexVariable(node?: SyntaxNode): string[] | undefined;
export declare function destructureComplexVariableTuple(node?: SyntaxNode): {
    variables: (PrimaryExpressionNode & {
        expression: VariableNode;
    })[];
    tupleElements: (PrimaryExpressionNode & {
        expression: VariableNode;
    })[];
} | undefined;
export declare function destructureIndexNode(node?: SyntaxNode): {
    functional: FunctionExpressionNode[];
    nonFunctional: (PrimaryExpressionNode & {
        expression: VariableNode;
    })[];
} | undefined;
export declare function extractQuotedStringToken(value?: SyntaxNode): string | undefined;
export declare function extractNumericLiteral(node?: SyntaxNode): number | null;
export declare function destructureCallExpression(node?: SyntaxNode): {
    variables: (PrimaryExpressionNode & {
        expression: VariableNode;
    })[];
    args: (PrimaryExpressionNode & {
        expression: VariableNode;
    })[];
} | undefined;
export declare function extractVariableFromExpression(node?: SyntaxNode): string | undefined;
export declare function extractVarNameFromPrimaryVariable(node?: PrimaryExpressionNode & {
    expression: VariableNode;
}): string | undefined;
export declare function extractSettingName(attr: AttributeNode): string | undefined;