| Parameters : |
- prop : dict, optional
Dictionary for which each key/value pair is a CF property name
and a condition for the property to be tested against. If the
value is a sequence of conditions then the attribute matches
if at least one of the conditions is passed.
In general, a condition may be any object and it is passed if
the attribute is equal to the object, with the following
exception:
- If the property is string-valued, then the condition may be
a regular expression pattern recognised by the re module
and the condition is passed if the property matches the
regular expression. Special characters for the start and end
of the string are assumed and need not be included. For
example, '.*wind' is equivalent to '^.*wind$'.
- attr : dict, optional
Dictionary for which each key/value pair is an attribute name
and a condition for the attribute to be tested against. If the
value is a sequence of conditions then the attribute matches
if at least one of the conditions is passed.
In general, a condition behaves as for prop, with the
following exception:
- For the Units attribute, the condition is passed if the
attribute is equivalent (rather than equal) to the
object. (Note that this behaviour does not apply to the
units attribute.)
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