diff --git a/.gitignore b/.gitignore
index 41e5e54..d12b833 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 *.exe~
 .env
 secret.json
+test
diff --git a/amocrm.go b/amocrm.go
index 085fca9..3ee3abc 100644
--- a/amocrm.go
+++ b/amocrm.go
@@ -53,10 +53,10 @@ func (client *Client) GetUser(userId int) (*users.User, error) {
 	return user, err
 }
 
-func (client *Client) GetLead(leadId string, query string) (*leads.Lead, error) {
+func (client *Client) GetLead(leadId int, query string) (*leads.Lead, error) {
 	deal := new(leads.Lead)
-	resource := fmt.Sprintf("/api/v4/leads/%s", leadId)
-	if len(query) != 0 {
+	resource := fmt.Sprintf("/api/v4/leads/%d", leadId)
+	if query != "" {
 		resource = resource + "?" + query
 	}
 
@@ -68,9 +68,9 @@ func (client *Client) UpdateLead(lead *leads.Lead) error {
 	return client.updateEntity("/api/v4/leads", lead.Id, lead)
 }
 
-func (client *Client) GetCompany(companyId string, query string) (*companies.Company, error) {
+func (client *Client) GetCompany(companyId int, query string) (*companies.Company, error) {
 	deal := new(companies.Company)
-	resource := fmt.Sprintf("/api/v4/companies/%s", companyId)
+	resource := fmt.Sprintf("/api/v4/companies/%d", companyId)
 	if query != "" {
 		resource = resource + "?" + query
 	}
@@ -116,9 +116,9 @@ func (client *Client) UpdateCompany(company *companies.Company) error {
 	return client.updateEntity("/api/v4/companies", company.Id, company)
 }
 
-func (client *Client) GetContact(contactId string, query string) (*contacts.Contact, error) {
+func (client *Client) GetContact(contactId int, query string) (*contacts.Contact, error) {
 	deal := new(contacts.Contact)
-	resource := fmt.Sprintf("/api/v4/contacts/%s", contactId)
+	resource := fmt.Sprintf("/api/v4/contacts/%d", contactId)
 	if query != "" {
 		resource = resource + "?" + query
 	}
diff --git a/filters/main.go b/filters/main.go
new file mode 100644
index 0000000..679da88
--- /dev/null
+++ b/filters/main.go
@@ -0,0 +1,3 @@
+package filters
+
+
diff --git a/leads/leads.go b/leads/leads.go
index dbe798b..907fbb4 100644
--- a/leads/leads.go
+++ b/leads/leads.go
@@ -19,7 +19,7 @@ type Lead struct {
 	ClosedAt               int                         `json:"closed_at,omitempty"`
 	ClosestTaskAt          interface{}                 `json:"closest_task_at,omitempty"`
 	IsDeleted              bool                        `json:"is_deleted,omitempty"`
-	CustomFieldsValues     []*common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
+	CustomFieldsValues     []common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
 	Score                  interface{}                 `json:"score,omitempty"`
 	AccountId              int                         `json:"account_id,omitempty"`
 	IsPriceModifiedByRobot bool                        `json:"is_price_modified_by_robot,omitempty"`
diff --git a/options/main.go b/options/main.go
new file mode 100644
index 0000000..5f721e6
--- /dev/null
+++ b/options/main.go
@@ -0,0 +1,18 @@
+package options
+
+type Option interface {
+	GetOption() string
+}
+
+type Array[V any] struct {
+	Name string
+	Values []V
+}
+
+func (arr Array) GetOption() string {
+
+}
+
+type Filter struct {
+}
+