# Path Parameters and Numeric Validations { #path-parameters-and-numeric-validations }

In the same way that you can declare more validations and metadata for query parameters with `Query`, you can declare the same type of validations and metadata for path parameters with `Path`.

## Import Path { #import-path }

First, import `Path` from `fastapi`, and import `Annotated`:

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[1,3] *}

var convertibleTypes = []reflect.Type{reflect.TypeOf(time.Time{}), reflect.TypeOf(false), reflect.TypeOf([]byte{})}

// RegEx matches only numeric values
var numericPlaceholderRe = regexp.MustCompile(`\$\d+\$`)

func isNumeric(k reflect.Kind) bool {
	switch k {
	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		return true

     *
     * @param value the numeric event type value
     */
    WitnessEventType(int value) {
        this.value = value;
    }

    /**
     * Gets the numeric event type value.
     *
     * @return the event type value
     */
    public int getValue() {
        return value;
    }

    /**
     * Gets a WitnessEventType from its numeric value.
     *
     * @param value the numeric value

    HandleType(int value) {
        this.value = value;
    }

    /**
     * Get the numeric value of this handle type
     * @return the numeric value
     */
    public int getValue() {
        return value;
    }

    /**
     * Get HandleType from numeric value
     * @param value the numeric value
     * @return the corresponding HandleType
     */
    public static HandleType fromValue(int value) {

        #  If you want to change mappings from default mappings, you can specify your original mappings.
        #  But it is possible that unanticipated problems occurs, so be careful!
        #; typeMappingMap = map:{
        #    # AutoMapping for Numeric and Decimal, (1-9,0): INTEGER, (10-18,0): BIGINT, else: NUMERIC

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Sebastián Ramírez <******@****.***> 1731896744 +0100

Sebastián Ramírez <******@****.***> 1731896744 +0100

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