You can declare variables passed from outside with the @morph.variables annotation. 
@morph.variables(
    var_name: str,
	default: Optional[Any] = None,
	required: Optional[bool] = False,
    type: Optional[Literal["str", "bool", "int", "float", "dict", "list"]] = None,
)
def func_name(context):
	# write your code here

​
Parameters

​
var_name
string
required
You can add arguments when executing the function.You can pass arguments from the mdx file or specify arguments when executing the command.
​
default
any
You can set a default value.If not specified, the default value will be None.
​
required
bool
default:"False"
You can specify whether the item is required.If it is set to required, an error will occur if it is not specified.
​
type
string
default:"None"
You can specify the type of the variable.If not specified, the type will be inferred automatically.

​
How to Use

@morph.func
@morph.variables("var1")
def get_data_from_database(context):
	var1_data = context.vars["var1"]
    # write your code here using var1_data
	return pd.DataFrame({})