fix: add missing type hints for observation service request handlers

Author: md-umair-21

healthcare/healthcare/doctype/observation/observation.py

@@ -135,7 +135,7 @@ def render_templates(self):
 
 
 @frappe.whitelist()
-def get_observation_details(docname):
+def get_observation_details(docname: str):
 	reference = frappe.get_value("Diagnostic Report", docname, ["docname", "ref_doctype"], as_dict=True)
 	observation = []
 

healthcare/healthcare/doctype/service_request/service_request.py

@@ -231,7 +231,7 @@ def make_lab_test(service_request):
 
 
 @frappe.whitelist()
-def make_observation(service_request, appointment=None):
+def make_observation(service_request: str, appointment: str | None = None):
 	if not service_request:
 		return