func NewGetFieldMappingService(client *Client) *IndicesGetFieldMappingService {
	return NewIndicesGetFieldMappingService(client)
}
NewGetFieldMappingService is an alias for NewIndicesGetFieldMappingService.
Use NewIndicesGetFieldMappingService.
package elastic
import (
	"context"
	"fmt"
	"net/url"
	"strings"
	"github.com/olivere/elastic/uritemplates"
)
type IndicesGetFieldMappingService struct {
	client            *Client
	pretty            bool
	index             []string
	typ               []string
	field             []string
	local             *bool
	ignoreUnavailable *bool
	allowNoIndices    *bool
	expandWildcards   string
}