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contains

Determines whether the AliasDictionary contains the specified alias.

def contains(self, alias):
    ...

Parameter	Type	Description
alias	`str`	The alias to locate in the AliasDictionary.

Returns: bool: True if the AliasDictionary contains the specified alias; otherwise, False.

Raises	Description
`ValueError`	When `alias` is None.

if aliases.contains("e"):
    replacement = aliases.get_text("e")

These names call contains too, limited to the overloads listed.

Alias	Accepts
`contains_file`	`contains_file(alias)`
`contains_string`	`contains_string(alias)`